1. Home

RULES

  1. Introduction
  2. MA Structure
  3. General Competition Rules And Making Rule Changes
  4. Jurisdiction s
    1. 1.1 Definitions
    2. 1.2 Purpose of Rules
    3. 1.3 Repeal of Current Gcrs
    4. 1.4 by Laws
  5. Administration s
    1. 2.1 The Controlling Bodies
    2. 2.2 Sports Development Levy
    3. 2.3 Sports Development Account
    4. 2.4 Officials
  6. Licensing s
    1. 3.1 Licensing Requirements
    2. 3.2 Licensing General
    3. 3.3 Licensing Seniors
    4. 3.4 Licensing Juniors
    5. 3.5 Licensing Entrants
    6. 3.6 Licensing Speedway Mechanics
    7. 3.7 Licence Issuing And Renewals
    8. 3.8 Junior Coaching Program
  7. Competitions s
    1. 4.1 Venues
    2. 4.2 The Promotion And Conduct of Competitions
    3. 4.3 MA Events
    4. 4.4 Protocols
  8. Alternative Forms of Competition s
    1. 5.1 Alternative Activities
    2. 5.2 Venues Alternative Activities
    3. 5.3 Permits : Alternative Activities
    4. 5.4 Supplementary Regulations Alternative Activities
    5. 5.5 Licensing of Competitors Alternative Activities
    6. 5.6 Technical Specifications Alternative Activities
  9. Recreational Motorcycle Activity s
    1. 6.1 Purpose
    2. 6.2 Recreational Activities
    3. 6.3 Controlling Bodies Recreational Activities
    4. 6.4 Officials Recreational Activities
    5. 6.5 Venues Recreational Activities
    6. 6.6 The Promotion And Conduct of Recreational Activity
    7. 6.7 Permits Recreational Activities
    8. 6.8 Entries
    9. 6.9 Licensing of Participants
  10. Offences Protests And Appeals s
    1. 7.1 Offences
    2. 7.2 Protests
    3. 7.3 Appellate Bodies
    4. 7.4 Appeals
  11. Judicial Committee Guidelines s
    1. 8.1 MA Hearing Guidelines
  12. National Personal Accident Insurance s
    1. 12.1 Summary of Policy Coverage
    2. 12.2 Capital Benefits
    3. 12.3 Weekly Benefits
    4. 12.4 Definitions
  13. Road Racing s
    1. SECTION 13 A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 13 B: COMPETITION CLASSES
    3. SECTION 13C: COMPETITION RULES
    4. SECTION 13 D: TECHNICAL REGULATIONS
    5. SECTION 13 E: TECHNICAL REGULATIONS: SOLO CLASSES
    6. SECTION 13 F: TECHNICAL REGULATIONS: SIDECARS
    7. SECTION 13 G: TECHNICAL REGULATIONS: JUNIOR CLASSES
    8. SECTION 13 H: MINIMOTO
  14. Historic Road Racing s
    1. SECTION 14 A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 14 B: COMPETITION CLASSES
    3. SECTION 14 C: COMPETITION RULES
    4. SECTION 14 D: TECHNICAL REGULATIONS: GENERAL
    5. SECTION 14E: TECHNICAL REGULATIONS: PERIOD
  15. Motocross And Supercross s
    1. SECTION 15 A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 15 B: COMPETITION CLASSES
    3. SECTION 15 C: COMPETITION RULES
    4. SECTION 15 D: TECHNICAL REGULATIONS
  16. Classic Motocross And Dirt Track s
    1. SECTION 16 A: AUSTRALIAN CHAMPIONSHIPS
    2. Section 16 B Competition Classes
    3. SECTION 16 C: COMPETITION RULES
    4. SECTION 16 D TECHNICAL REGULATIONS
  17. Enduro And Reliability Trials s
    1. SECTION 17A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 17B: COMPETITION CLASSES
    3. SECTION 17C: COMPETITION RULES
    4. SECTION 17D: TECHNICAL REGULATIONS
    5. SECTION 17E: AUSTRALIAN FOUR-DAY ENDURO CHAMPIONSHIPS
  18. ATV s
    1. SECTION 18A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 18B: COMPETITION CLASSES
    3. SECTION 18C: COMPETITION RULES
    4. SECTION 18D: TECHNICAL REGULATIONS
  19. Speedway s
    1. SECTION 19A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 19B: AUSTRALIAN SPEEDWAY CHAMPIONSHIP
    3. SECTION 19C: AUSTRALIAN TEAM CHAMPIONSHIPS
    4. SECTION 19D: COMPETITION RULES
    5. SECTION 19E: TECHNICAL REGULATIONS
  20. Dirt Track s
    1. SECTION 20A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 20B: COMPETITION CLASSES
    3. SECTION 20C: COMPETITION RULES
    4. SECTION 20D: TECHNICAL REGULATIONS
  21. Track s
    1. SECTION 21A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 21B: COMPETITION CLASSES
    3. SECTION 21C: COMPETITION RULES
    4. SECTION 21D: TECHNICAL REGULATIONS
  22. Supermoto s
    1. SECTION 22A: AUSTRALIAN CHAMPIONSHIPS
    2. SECTION 22B: COMPETITION CLASSES
    3. Section 22c Competition Rules
    4. SECTION 22D: TECHNICAL REGULATIONS
  23. Trial s
    1. SECTION 23A: AUSTRALIAN CHAMPIONSHIP
    2. SECTION 23B: COMPETITION CLASSES
    3. SECTION 23C: COMPETITION RULES
    4. SECTION 23D: TECHNICAL REGULATIONS
    5. SECTION 23E: CLASS TECHNICAL REGULATIONS
  24. Minikhana s
    1. SECTION 24A: MINIKHANA CLASSES
    2. SECTION 24B: COMPETITION RULES
    3. SECTION 24C: TECHNICAL REGULATIONS
    4. SECTION 24D: MINIKHANA COURSES
  25. Policies s
    1. 25.1 Member Protection Policy
    2. 25.2 Anti-doping Policy
    3. 25.3 Anti Match-fixing Policy
    4. 25.4 Privacy Regulation
    5. 25.5 Occupational Health and Safety Policy
    6. 25.6 Environmental Sustainability Policy
    7. 25.7 National Team Selection Policy

Rules

SECTION 19E: TECHNICAL REGULATIONS


19.13 SOUND EMISSIONS

Sound testing must be carried out at all permitted events; however, it is not mandatory to test all machines.

19.13.1 Specifications

19.13.1.1 Sound emissions are set out in the table below:

[Prior to 1st October 2015] 30 metres (from side of track) ride by test

DISCIPLINE LIMIT dB(A)
Speedway (including ATVs) 95
Record Attempts No limit

[Effective 1st October 2015] 2 Metre Max method

DISCIPLINE LIMIT dB(A)
Speedway (including ATVs) 115 + 3dB(A) tolerance, total 118dB(A) maximum
19.13.1.2 Where government regulations or planning orders exist in relation to lower sound emissions or where a venue has lower sound emission requirements as part of the hire contract, the sound emission required will prevail over GCR 19.13.1.1.

19.13.2 Sound Control During Competition

19.13.2.1 The Sound Control Officer (SCO) must arrive in sufficient time for discussions with the Clerk of the Course Referee and other Technical Officials in order that a suitable test site and testing policy can be agreed.
19.13.2.2 Machines can be tested before, or after competing in an event, chosen by ballot, or as required by a Steward, Clerk of the Course Referee or SCO.

19.13.3 Use of Sound Level Meters

19.13.3.1 Sound testing apparatus must:

  1. Comply with international standard IEC 651, Type 1 or Type 2.
  2. Include a compatible calibrator, which must be used immediately before testing begins and always just prior to a re-test if a disciplinary sanction may be imposed.
19.13.3.2 Sound testing apparatus must be set to

  1. ‘Fast response’
  2. ‘A’ weighted,
  3. Select range High 80~130 dB,
  4. Activate the function MAX MIN – set on MAX

19.13.4 ’30 Metre ride by’ test

19.13.4.1 The sound levels will be measured with the sound meter/microphone fixed on a tripod, in the horizontal position, 30 meters from the edge of the track at a high speed point.

19.13.5 ‘2 Metre Max’ test

19.13.5.1 ‘2 Metre Max’ Set up of the sound meter and the motorcycle:

  1. The sound levels will be measured with the sound meter/microphone fixed on a tripod, in the horizontal position, at the rear of the motorcycle.
  2. For the place and position of the motorcycle, ensure that there are no solid obstacles within a 10 meter radius of the microphone.
  3. The sound meter will be positioned at a distance of two metre behind the motorcycle, with an angle of 45° away from the centerline, on the exhaust side and at a height of 1.35 metre above the ground, with the sound meter level.
  4. The two metre distance is measured from the point where the centre of rear tyre touches the ground.
  5. It is preferred that the tests are conducted on soft ground, to prevent reverberation, i.e. grass or fine gravel.
  6. In other than moderate wind, machines should face forward in to the wind direction.
  7. The ambient sound level must remain lower than 100 dB/A.
19.13.5.2 ‘2 Metre Max’ Positioning of the motorcycle:
The reference points:

  1. For a motorcycle: the contact point of the rear wheel on the ground.
  2. For motorcycles fitted with two exhaust outputs, the measurement will be made on the side of the air intake. If a central positioned air intake is used, both sides will be tested.
  3. For Sidecars: the contact point of the side wheel on the ground.
  4. For ATV vehicles: the vertical line to the ground from the centre point of the rear axle.
  5. For ATV vehicles with exhaust outlet moved from the median axis, the measurement will be made on the offset side. To make repetitive measurements, all motorcycles can be positioned into a small frame fixed on the ground.
19.13.5.3 ‘2 Metre Max’ method:

  1. The measurement is made with the motorcycle on its wheels, with a hot engine.
  2. During a sound test, machines not equipped with a gear box neutral must be placed on a stand.
  3. The SCO should stand beside the motorcycles, opposite the microphone and not screen or stand between the bike and the microphone. An assistant, placed on the left side of the motorcycle, shall disengage the clutch.
  4. The SCO shall open the throttle as fast as possible until full open throttle (instantly, within 0.3 seconds) and keep at max engine ‘rpm’ for at least one second. To end, the SCO will release the throttle quickly.
  5. If the result exceeds the limit, including ‘after fire’, the Inspector shall test the motorcycle a maximum of 2 more times.
  6. For motorcycles equipped with an engine rpm limiter, opening the throttle will be made – instantly, within 0.3 seconds – and kept open until at least one second has evolved and/or when there is an audible sign of over revving the engine.
  7. For motorcycles without an engine ‘rpm’ limiter, the opening of the throttle will have to be lower than two seconds and/or when there is an audible sign of over-revving the engine.
  8. If the engine tends to suffocate, close the throttle slightly and re-open the throttle.
  9. If detonations appear, the measurement must be started again.
  10. The numbers obtained from the test shall not be rounded down.
  11. For the sound level measurement, the handling of the throttle is limited only to the SCO, who shall open the throttle himself in order to minimize the influence by another operator (for that, it is helpful to have the microphone equipped with an extension cable to the sound meter).
19.13.5.4 Tests shall not take place in the rain

19.13.6 Machine Testing

19.13.6.1 If a machine fails, it can be represented for re-testing.
19.13.6.2 No person may compete in any event on a machine whose noise emissions exceed the prescribed levels.
19.13.6.3 A machine which does not comply with the sound limits can be presented several times.

19.14 FUEL: GENERAL

19.14.1 Fuel Warning

19.14.1.1 Fuels and lubricants are highly specialised substances and participants must be aware they may contain substances that are extremely dangerous to human health if misused, inhaled or allowed to contact skin.
19.14.1.2 Some of the components of fuel and lubricants are suspected of having the potential to cause cancer in rare circumstances.
19.14.1.3 The use of petrol as a general cleaning and washing agent is a common misuse of a potentially dangerous substance.
19.14.1.4 Fuels should be used and stored with extreme care and in accordance with the manufacturer’s instructions.

19.14.2 Fuel Testing

19.14.2.1 For any event, meeting or series, the relevant controlling body may direct that no fuels other than fuels of prescribed specifications and from a prescribed source may be used.

  1. Tests to ensure that only prescribed fuels are used in an event, meeting or series may be administered at any time and place during the course of the same,
  2. The Referee, Race Director or Chief Scrutineer may direct the administration of fuel tests.
19.14.2.2 Fuel tests must comply with the following procedures:

  1. All containers for holding samples must be clean and constructed of robust non-reactive impermeable material, must be sealable, and must have provision for identification,
  2. Equipment used for the extraction of fuel from machines must be clean and constructed of fuel non-reactive material,
  3. All samples must be divided into two lots (Sample A and Sample B) of not less than 5ml each, which must be placed in separate containers,
  4. Once samples are placed in containers, the containers must immediately be sealed and identified by reference to the machine from which the sample was taken. This information must be entered on a fuel sample certificate which must certify the date, place and time of taking the sample, the identity of the machine from which the sample was taken and the identity of the rider,
  5. Both samples must remain in the control of the official who administered the test.
  6. The rider or the representative must sign the fuel sample certificate acknowledging samples have been taken and are sealed,
  7. All samples held by the official must be delivered as soon as practicable after the competition to the Relevant Controlling Body which must deliver the Sample A as soon as practicable to a laboratory approved by MA where they must be tested for content and quality in accordance with standard scientific procedures,
  8. The Relevant Controlling Body must as soon as practicable after receipt of the results notify the rider or rider’s team representative and MA,
  9. If the rider is dissatisfied with the test result of sample A, they may request sample B be tested at an MA approved laboratory in their presence.

19.14.3 Refuelling

19.14.3.1 During refuelling, each machine must be stationary with the engine stopped.
19.14.3.2 Refuelling will be deemed to have commenced when the fuel tank has been opened and completed when the tank is closed.
19.14.3.3 Smoking is strictly prohibited in areas where refueling is permitted.
19.14.3.4 Riders are liable for exclusion from an event for failing to adhere to GCR 19.14.3.3, and are responsible for the actions of their mechanics and support team members.

19.14.4 Homologation of Fuel

19.14.4.1 Unleaded fuel produced by an oil company for sale in the Australian general transport fuel market through retail petrol pumps in at least five states does not have to be homologated. For the avoidance of doubt this means the fuel must be available for sale on demand from a roadside bowser outlet at each of at least five separate service stations in each of at least five Australian states or territories.
19.14.4.2 Organisations seeking homologation of fuel must provide MA with:

  1. Two one-litre sealed containers of the fuel for analysis,
  2. Details of the fuels characteristics,
  3. The distribution network,
  4. The price structure,
  5. A homologation fee of $2,500 in the first year and $2,000 per year thereafter.
19.14.4.3 Fuels approved under this GCR will be published at www.ma.org.au.

19.14.5 Fuel: Speedway

19.14.5.1 Fuel must:

  1. Be unleaded, and
  2. Be no more than 100 RON; and
  3. Contain no additives other than those added at the point of manufacture except for lubricating oil for 2-stroke engines; and
  4. Be readily available from retail petrol pumps within Australia; or
  5. Be a brand of fuel homologated by MA that is compatible with the “Fuel Quality Standards Act 2000”.
19.14.5.2 For Senior and Classic competition, and 250cc and 350cc Junior machines, the following fuels are permitted:

  1. Commercially available pure Methanol with no additives other than lubricating oil, or
  2. Unleaded fuel which complies with GCR 19.14.5.1.

19.15 ENGINES

19.15.1 Reciprocating Engines

19.15.1.1 Formulae for calculation of capacities and classes
Cubic capacity = (D2 x 3.1416 x C x N)
4
Where:D = Bore in centimetres,
C = stroke in centimetres,
N = Number of cylinders.

19.15.2 Engine Capacity Tolerances

19.15.2.1 Unless otherwise specified in the following table, the actual engine capacity of a machine competing in a capacity class may not exceed the prescribed capacity for that class by more than 2%:

CLASS

PERMITTED EXCESS

Sidecar Cycle car machines except Road Race 5%
80cc 2 stroke machines manufactured prior to 1/1/95 5%
Record attempts and senior Speedway / Track. Nil
65cc & 85cc machines Nil

19.15.3 250/350/500 Solo

19.15.3.1 Engine capacity must not exceed 250cc, 350cc, or 500cc.
19.15.3.2 Engines must be:

  1. Single cylinder,
  2. 4-stroke,
  3. Four valves maximum,
  4. Fitted with one carburettor of 34mm +/- 0.1mm diameter, and
  5. One spark plug.
19.15.3.3 2-valve engines may use a carburettor of 36mm +/- 0.1mm diameter.
19.15.3.4 The carburettor measurements must:

  1. Remain constant over a distance of no less than 25mm on the engine side and 5mm on the air intake side,Be taken from the edges of the throttle valve or throttle butterfly.

Figure 19.15.3.4 Carburettor dimensions

19.15.3.5 The fuel output section of the carburettor must be of circular shape.
19.15.3.6 Direct injection must comply with the above carburettor sizes.
19.15.3.7 Supercharging and turbocharging are not permitted.

19.15.4 Sidecar Engines

19.15.4.1 An event may be restricted to machines of a capacity of no more than 500cc, which will be known as a 500cc class event.
19.15.4.2 For a machine competing in a 500cc class event, the engine must comply as follows:

  1. Where electronic fuel injection is installed, it must be of a standard production type,The engine may not be turbocharged or supercharged.
19.15.4.3 For a machine competing in any event other than a 500cc class event, the engine must comply as follows:

  1. The engine capacity must not exceed 1045cc,
  2. Supercharged and turbocharged engines must not exceed 500cc,
  3. On liquid cooled engines an overflow pipe must be used to direct any overflow of coolant away from the rider and passenger.
  4. Titanium may be used if fitted as OEM.

19.16 FRAMES AND PARTS

19.16.1 Streamlining

19.16.1.1 All streamlining fitted to motorcycles or sidecars must be free of any sharp edges on exposed extremities.
19.16.1.2 For fibreglass construction, edges must be rounded to their own thickness but need not be wired.

19.16.2 Fuel Tanks

19.16.2.1 Fuel tanks may be constructed from any material that has been approved by the Australian Standards Association as a petrol or fuel container material.

19.16.3 General Frames and Parts

19.16.3.1 Titanium: The use of Titanium is not permitted in the construction of the frame, the front forks, the handlebars, the swingarms or the wheel axles of any machine.
19.16.3.2 Handlebars must:

  1. Be fitted to the unsprung part of the front suspension,
  2. Be securely plugged so as to present a flush or rounded end,
  3. Have a width of not more than 900mm nor less than 700mm, and
  4. Have handlebar grips attached to the ends with a maximum length of 150mm
19.16.3.3 Clutch levers must:

  1. Have ball ends with a minimum diameter of 19mm,
  2. Measure no more than 200mm from the fulcrum to the extremity of the ball.
19.16.3.4 Throttle controls and mechanical carburettor linkages must:

  1. Be self-closing,
  2. Be enclosed so as to prevent jamming.
19.16.3.5 There must be a kill switch which must:

  1. Cut out the ignition,
  2. Operate on the primary circuit,
  3. Be fitted with a lanyard which must:
    1. Have a total extended length not exceeding 500mm,
    2. Be attached around the rider’s right wrist when the machine is in motion,
    3. Not be secured to the handlebar unless by a readily torn material.
19.16.3.6 Stops or other devices must be fitted to ensure a minimum clearance of 30mm between the handlebars and any other part of the machine when on full lock.
19.16.3.7 Steering must be:

  1. Direct,
  2. Through the front wheel,
  3. By a classic telescopic fork, leading link, earles, or girder type.
19.16.3.8 Light alloys may not be used for wheel axles.
19.16.3.9 The front wheel must be fitted with a knockout spindle or an approved clamp to fasten on the fork tips.
19.16.3.10 Brakes may not be fitted.
19.16.3.11 For any cast or welded wheel, the gaps between the spokes must be filled in.
19.16.3.12 Machines need not carry number plates.
19.16.3.13 FIM homologated dirt deflectors must be fitted to all solo Speedway machines with the exceptions of 125cc Junior machines, and 500cc upright engined machines when used in classic Speedway events.

Figure 19.16.3.13 Dirt deflector detail

19.16.3.14 Primary chain guard protection must be provided by:

  1. Fully enclosing the chain with a steel guard, or
  2. If a plastic, fibreglass or part open chain guard is used, a steel bolt of not less than 10mm minimum diameter, placed outside the bottom rear quadrant of the clutch sprocket. This bolt, if damaged, must be replaced.

Figure 19.16.3.14 Chain guard detail

19.16.3.15 Mechanical carburettor linkages must be:

  1. Enclosed by a suitable material, or
  2. Fully enclosed by a box.

19.17 CLASS TECHNICAL REGULATIONS: SOLO

19.17.1 Solo

19.17.1.1 Rear chain guards must:

  1. Be fitted to the back end of the rear assembly of machines,
  2. Provide protection where the rear chain enters onto the rear wheel sprocket.
19.17.1.2 Exhaust systems must not extend beyond the outer circumference of the rear wheel rim and tyre.
19.17.1.3 The gap between the silencers and the tyre must not exceed 60mm.
19.17.1.4 Exhaust gases must be discharged from the system horizontally and parallel to the centre line of the machine.

Figure 19.17.1.4 250/350/500 Solo exhaust detail

19.17.1.5 [effective 1st October 2015] Only FIM homologated exhaust with heat shield fitted to be used.
19.17.1.6 The exhaust pipe must be fixed to the cylinder head and frame with a minimum of three clips, one of which must be attached to the cylinder head.
19.17.1.7 The silencer must be attached to the frame with at least one clip. A second moveable coupling must be fitted from the first third of the silencer to the frame with steel cable of at least 3mm or strong steel spring.
19.17.1.8 The diameter of the exhaust pipe must not exceed 50mm or an equivalent area and must remain constant up to the silencer.
19.17.1.9 The outlet area of the silencer must remain constant over a length of 50mm, must not exceed 45mm, or an equivalent area, and must not be perforated.
19.17.1.10 The outside shell of the silencer must form one unit. The end of the pipe must be cut at right angles.
19.17.1.11 Where turbo or similar types of approved silencers are fitted:

  1. The silencer must be mounted in a position to discharge the exhaust fumes at a minimum deflection of 15° from the centre line of the machine and a maximum of 30° to the ground,
  2. The silencer must not be altered in shape or modified in any way, other than a welded transition section to allow clamping to the exhaust pipe,
  3. The maximum internal outlet diameter must be 47mm and must remain as manufactured.
19.17.1.12 Machines must be fitted with a front mudguard that extend at least 5° ahead of a vertical line running through the centre of the front wheel axle and at least 5° under the top edge of the mud-shield protecting the front of the engine.
19.17.1.13 The rear mudguard must extend at least 5° behind a vertical line running through the centre of the rear axle. Distance between rear mudguard and top of rear tyre must be no more than 35mm plus 5mm tolerance. If a push bar is used, it should be made in one piece, of strong material which should not break under impact and must not protrude any higher than 35mm above the rear mudguard.
19.17.1.14 Rear tyre requirements are as follows:

  1. Subsequent modification of tyres is not permitted,
  2. The overall width must not exceed 100mm,
  3. The tyre must be mounted and inflated to 14psi at Scrutineering,
  4. The tread depth must not exceed 8mm measured at right angles to the face of the tread,
  5. All blocks in the same circumference must be of the same depth,
  6. The space between the blocks must not exceed 9.5mm across the tyre or 13mm in a circumferential direction,
  7. The space between the blocks must not exceed 22mm. The space across C in the relevant diagram must not extend completely across the tyre measured at right angles to the wall of the tyre, unless broken by a block.

Figure 19.17.1.13 Solo tyre details

19.17.1.15 The front tyre may be of any size or type but limited to an overall width of 80mm.
19.17.1.16 Tyres may not be treated by chemicals, tyre warmers or other means which tend to alter the shape, minimum shore hardness, construction or other characteristics.
19.17.1.17 The minimum weight, without fuel, is 77kg.
19.17.1.18 Footrests:

  1. Must be on the right hand side of the machine and must not exceed 320mm in length measured from the centre line of the motorcycle,
  2. Must have metal protection at the end of at least 8mm radius,
  3. May be folding and, if so, must be fitted with a device which automatically returns them to the normal position.
19.17.1.19 Rear suspension is prohibited.
19.17.1.20 A single gear only is permitted.

Figure 19.17.1.19 Solo speedway machine: Side and top view

19.18 250CC INTERMEDIATE SPEEDWAY

19.18.0.1 This class is for State level competition only.
19.18.0.2 Promoters intending to conduct competition for 250cc intermediate class must:

  1. Obtain approval from the Speedway Commission, in addition to obtaining approval from the State Controlling Body,
  2. Provide the Commission with a report on the merits of the class. The report should include statements from riders and officials and engineering personnel.

19.18.1 250cc Intermediate Speedway Engines

19.18.1.1 4-stroke single cylinder engine up to 250cc.
19.18.1.2 If the engine is fitted with a gearbox, the gearshift lever must be removed and the machine must remain in one gear during racing.

19.18.2 250cc Intermediate Speedway Frames and Parts

19.18.2.1 Frames and parts must be in accordance with GCR19.16.

19.19 250/350CC SOLO SPEEDWAY

19.19.0.1 Competition for 250cc and 350cc machines is allowed under Speedway Rules.
19.19.0.2 Junior/senior must be assessed by an MA accredited coach prior to competition.
19.19.0.3 Riders using these machines must be:

  1. A minimum age 250cc 13 years to under 16 years, minimum age 350cc 14 years to under 16 years,
  2. Junior riders can practice or demonstrate on a 250cc machine from the age of 12 years and 9 months,
  3. Junior riders can practice on a 350cc machine from the age of 13 years and 9 months,
  4. Senior riders can ride 250cc or 350cc machines,
  5. No juniors are permitted on track with seniors.
19.19.0.4 350cc machines are not eligible to enter the Australian Championship from 1st January 2014.
19.19.0.5 Other special conditions will apply to the use of these machines and these conditions will be made available from MA upon request.
19.19.0.6 For junior 250cc machines only, tracks must be no more than 350 metres in length, and licensed by MA or the relevant State Controlling Body.
19.19.0.7 Engines:

  1. must be OEM 250cc and 350cc;
  2. carburettor size 34mm +/- 0.1mm;
  3. Valves and valve springs may be changed but must be the same size as OEM;
  4. Pistons may be changed, replacement pistons must be the same compression as OEM;
  5. Use of Titanium is not permitted.

19.20 JUNIOR SPEEDWAY: 50cc and 125cc SOLO

(other junior classes are as above)

19.20.1 Engines

19.20.1.1 The use of Titanium in junior Speedway engines is prohibited.

19.20.2 50cc Solo

19.20.2.1 Eligible machines are any production solo motorcycles utilising 50cc 2 or 4-stroke engines. All machines must be OEM.

  1. Engine capacity must not exceed 50cc
  2. The gearbox must not have more than one gear for 2-stroke machines and three gears for 4-stroke machines.
  3. The clutch must not be of other than OEM and other than of a centrifugal type
  4. Rear wheel must not be other than 10″ (254mm)
  5. Front wheel must not be other than 10″ (254mm) or other than 12″ (304mm)
  6. A lanyard kill switch must be fitted
  7. Working brakes must be retained
19.20.2.2 The following may be altered.

  1. Parts equivalent to OEM may be fitted.
  2. Seat
  3. Colour
  4. Mudguards
  5. Handlebars
  6. Grips
  7. Levers
  8. Cables
  9. Chains
  10. External gearing
  11. Tyre brand and pattern
  12. Foot pegs and foot peg position
  13. Rear shock absorber may be removed and replaced with a solid replacement
  14. Throttle limiting devices may be removed
  15. Restrictor washers in the header pipe abutting cylinder barrel may be removed.

19.21 125cc SOLO

19.21.0.1 Wheelbase must not exceed 1375mm.
19.21.0.2 Rear rim diameter must not exceed 17″ (432mm).
19.21.0.3 Rear tyres must:

  1. Have Trial or Speedway pattern tread tyres,
  2. Not exceed 90mm x 432mm (3.5″ x 17″),
  3. Not be modified.
19.21.0.4 Front rim diameter must not exceed 482mm (19″).
19.21.0.5 Front tyres must:

  1. Have Trial pattern or Speedway tread,
  2. Have a diameter not exceeding 19″ (482mm),
  3. Not be modified.

19.21.1 Exhaust mounts

  1. The exhaust must have at least three mounts to the motorcycle,
  2. The silencer must be attached to the frame with at least one clip. A second moveable coupling must be fitted from the first third of the silencer o the frame with a steel cable of at least 3mm or a strong steel spring.
19.21.1.1 If the engine is fitted with a gearbox, the gearshift lever must be removed and the machine must remain in one gear while racing.
19.21.1.2 The engine capacity must not exceed 125cc with a +1mm tolerance of the bore diameter.
19.21.1.3 A single cylinder, 4-stroke engine, fitted with one carburettor, of a mass produced type must be used.
19.21.1.4 The cylinder head must be as follows:

  1. 2-, 3- or 4-valve cylinder heads can be fitted, but 3- and 4-valve heads must retain manufacturers’ specifications,
  2. The action of the valves must be controlled by valve springs,
  3. The cylinder head may be ported and, if damaged in use, bearing journals may be bored and bearings replaced with either roller or bronze bearings,
  4. For 2-valve heads, maximum valve size must be:
    1. Exhaust – 25mm, and Inlet – 30mm.
19.21.1.5 Carburettors no bigger than 24mm can be fitted.
19.21.1.6 Inlet manifold must be round for entire length.
19.21.1.7 Early model crankcases may be used with late model heads but the compression ratio must not exceed 9.7:1.
19.21.1.8 Any type of ignition system may be used.
19.21.1.9 Later model parts, or parts of different manufacture, may be installed.
19.21.1.10 The “Shupa” brand junior Speedway machine is approved for competition in the Junior 125 Solo class when the machine is fitted with the 2- or 3-valve head.

19.22 CLASS TECHNICAL REGULATIONS: SIDECAR

19.22.1 Sidecar: General

19.22.1.1 The overall width must not exceed 1500mm.
19.22.1.2 The length from the leading edge of the front tyre to the outside of the rear mudguard must not exceed 2600mm.
19.22.1.3 Overall height must not exceed 1200mm.
19.22.1.4 The wheel base taken at axle height from the centre of the front axle to the centre of the rear axle must measure between 1280mm and 1800mm.
19.22.1.5 The wheel track, taken between the tracks left by the centre lines of the rear motorcycle wheel and the sidecar wheel, must measure between 500mm and 1100mm.
19.22.1.6 The centre lines of the tracks made by the front and rear wheels of the motorcycle when the machine is proceeding directly forward must be no further apart than 75mm.
19.22.1.7 The width of the kneeling pad on the offside of the machine must not exceed 400mm.
19.22.1.8 The tubing used in the construction of the main frame of a sidecar motorcycle must have a minimum wall thickness of 1.5mm.
19.22.1.9 The sidecar must be on the left of the motorcycle and, if not an integral part of the chassis, must be fixed to the motorcycle in at least four places.
19.22.1.10 The sidecar wheel must be staggered inwards. If the sidecar wheel is mounted by a plate on both sides, the diameter of the axle must exceed 12mm.
19.22.1.11 The sidecar frame must have a continuous bar along the exterior of the sidecar wheel.

Figure 19.22.1.11 Speedway sidecar dimensions

19.22.1.12 The streamlining:

  1. Must not be in front of a vertical line drawn through the leading edge of the front tyre,
  2. Must not to the rear of a vertical line drawn through the exterior edge of the rear rim,
  3. May come into contact with the ground with the rear wheel raised 300mm from the ground.
19.22.1.13 In all handlebar positions, there must be a space of at least 30mm between the streamlining and the ends of the handlebars, including any attachments.
19.22.1.14 Aero panels, side panels and similar attachments may be used provided they are:

  1. Constructed of metal, fibreglass or polycarbonate material,
  2. Free of sharp or protruding edges, and
  3. Not dangerous to the rider or other competitors.
19.22.1.15 Horizontal wings and aerodynamic friction assisting devices are prohibited.
19.22.1.16 Fuel tanks must be of a material approved by the Australian Standards Association for fuel containers.
19.22.1.17 Drive must only be transmitted through the rear wheel of the motorcycle.
19.22.1.18 Wheel, rim and tyres must be the following:

  1. Solo two ply and four ply 75mm (3″) tyres may not be used on rear rims exceeding 127mm (5″) in width,
  2. The rear wheels minimum 450mm (18″) maximum 475mm (19″) diameter, rim width maximum 125mm (5″),
  3. Knobby tyres may not be used,
  4. Speedway or universal trial block pattern tyres only to be used,
  5. Tyres may be cut or grooved.
19.22.1.19 The area inside a spoked wheel must be covered by a disc or shield so as to prevent a rider’s or passenger’s feet or hands coming into contact with the spoked area.
19.22.1.20 Any space between the sidecar body and the rear or sidecar wheel of the motorcycle greater than 76mm must be decked so as to prevent the passenger’s hands or feet entering between the chassis bars.
19.22.1.21 Any open area between the footrests, the continuous bar and the right hand side to the direction of travel must be filled in with a suitable material so as to stop a rider or passenger from trapping their feet.
19.22.1.22 Where the sidecar wheel is mounted with a bracket on one side only, the axle diameter must be a least 20mm.
19.22.1.23 Stub axles must have a minimum diameter at the base plate of 40mm.
19.22.1.24 The sidecar wheel must be covered by a non-rotating shield which must:

  1. Be constructed of sheet metal, fibreglass or similar material and be flat or nearly so,
  2. Be securely fitted to the sidecar,
  3. Incorporate a 25mm horizontal crash bar surrounding the outer side of the sidecar wheel at floor level,
  4. Cover at least the outward facing spoked area, and,
  5. If trials tyres are fitted, cover the tyre area as well.

Figure 19.22.1.24 Rear guard and flap assembly details

19.22.1.25 The sidecar wheel must be either spoked, moulded type mag, or other approved wheel. Riveted type mag wheels are not permitted.
19.22.1.26 The fitting of a front mudguard is not compulsory.
19.22.1.27 Rear mudguards:

  1. Must be valanced on both sides down to axle level, to a maximum of 170mm from ground level
  2. Must be fitted with a one piece flexible mud flap without any slots, which:
    1. Is a minimum thickness of 6mm and be of a reinforced belting type rubber,
    2. Is attached to the rear mudguard,
    3. Ends no more than 20 mm above ground level,
    4. Is attached to three sides of the mudguard and projects forward by a minimum of 75 mm on each side,
    5. Is a consistent width from top to bottom,
    6. And/or be fitted with an FIM homologated dirt deflector,
  3. May be incorporated into the passenger’s seat moulding,

Figure 19.22.1.27 Rear mudguard

19.22.1.28 Promoters may require additional specifications for the protection of spectators.
19.22.1.29 Footrests must be on the right hand side to the direction of travel and linked by a continuous bar.
19.22.1.30 All exterior barwork and tubework ends must be plugged or capped so as to present a flush or convex end.
19.22.1.31 A suitable handhold must be provided for the passenger on the offside of the machine and near the front.
19.22.1.32 Exhaust fumes must be discharged towards the rear of the machine. Exhaust fumes must not be discharged so as to raise dust, foul the tyres or inconvenience the passenger or any other rider or passenger.
19.22.1.33 The exhaust must be attached to the machine at a minimum of three locations, two on the frame, (one to the rear), in addition to the one on the cylinder head.

19.22.2 Sidecar: Junior

19.22.2.1 Engine capacity must not exceed 250cc. Motors must be 4-stroke only.
19.22.2.2 Machines must be fitted with an unmodified 4-stroke production engine and may be fitted with an operating gearbox. OEM engine electrics must also be used.
19.22.2.3 Junior sidecar competitors on junior sidecar machines are: allowed to compete on senior tracks to a maximum length of 450 metres. Rider and passenger must be aged 14 to 16 years of age. Riders must be assessed by an accredited coach prior to competition.
19.22.2.4 Overall length from the leading edge of the front tyre to the outside edge of the rear mudguard must not exceed 2100mm.
19.22.2.5 Overall width must not exceed 1250mm.
19.22.2.6 Wheelbase, taken at axle height and from the centre of the front axle to the centre of the rear axle, must measure between 1,500mm and 1,200mm.
19.22.2.7 Stub axles must have a minimum diameter at the base plate of 25mm.
19.22.2.8 Wheel track, taken between the tracks left by the centre lines of the rear motorcycle wheel and the sidecar wheel, must measure between 800mm and 600mm.
19.22.2.9 The width of the kneeling pad on the off side of the motorcycle must not exceed 300mm.
19.22.2.10 The sidecar wheel must be covered by a non-rotating shield which must:

  1. Be fitted securely to the sidecar,
  2. Incorporate a 20mm horizontal crash bar surrounding the outer side of the sidecar wheel at floor level,
  3. Cover at least the outward facing spoked area, and
  4. If trials tyres are fitted, the tyres.
19.22.2.11 Rear mudguards:

  1. Must be valanced on both sides down to axle level,
  2. Must be fitted with a one piece flexible mud flap without any slots, which:
    1. Is a minimum thickness of 6mm and be of a reinforced belting type rubber,
    2. Is attached to the rear mudguard,
    3. Ends no more than 20mm above ground level,
    4. Is attached to three sides of the mud-guard and projects forward by a minimum of 75mm on each side,
19.22.2.12 Front and rear rim diameter for the motorcycle must not exceed 19″ (482mm).
19.22.2.13 Rear rim width for the motorcycle must not exceed 102mm and trial or Speedway pattern tread tyres must be fitted.
19.22.2.14 Hand holds and footrests must comply with the requirements for senior Speedway sidecars.
19.22.2.15 Sidecar wheels and tyres:

  1. Knobby tyres are not permitted,
  2. Cutting or grooving tyres is permitted,
  3. The sidecar wheel must be either spoked, moulded type mag, or other approved type wheel. Riveted type mag wheels are not permitted.

19.23 CLASS TECHNICAL REGULATIONS: CLASSIC SPEEDWAY

19.23.1 Classic Speedway

19.23.2 Eligibility: Solo

19.23.2.1 Engines must have been manufactured before 31st December 1976.
19.23.2.2 Competitors must be aged at least 30 years at the date of the competition.

19.23.3 Frame: Classic Speedway

19.23.3.1 The frame must:

  1. Have a front wheel diameter of 23″ (594mm),
  2. Have a rear wheel diameter of 19″ (482mm),
  3. Have rear tyres with a maximum tread pattern depth of 8mm,
  4. Not be fitted leading-link front forks.

19.23.4 Engine Specifications: Solo

19.23.4.1 The engine must:

  1. Be single cylinder,
  2. Be 2-valve with push rod operation,
  3. Have a single spark plug,
  4. Have a maximum capacity of 500cc +/- 2% tolerance,
  5. Be vertical in the chassis,
  6. Be fitted with a round slide carburettor of 38mm maximum bore,
  7. Not be fitted with a centre port cross flow cylinder head.

19.23.5 Eligibility: Classic and Post Classic Sidecars

19.23.5.1 For the Classic Class – British, European & American and Classic Class – Japanese Sidecar riders must be aged 30 years or over at the date of competition, Sidecar passengers must be 16 years or over at the date of competition,
19.23.5.2 Machines and all parts used in their construction are to be commercially available in their selected era ONLY
19.23.5.3 All machines must comply with GCR 19.16.3.5 c)(kill switch).
19.23.5.4 Maximum standard engine capacity of 1020cc and no reconditioning tolerance is allowed.
19.23.5.5 Only machines of the type raced on Australian Speedways in the selected era will be eligible.

19.23.6 Classic Class: British, European & American Sidecars

19.23.6.1 This class will cover machines using original factory motorcycle frames and standard forks, i.e. one made by a recognised motorcycle manufacturer.

  1. Motors will be 4-stroke 2 valves per cylinder, air cooled and a maximum of two cylinders, manufactured and raced prior to Dec 31st 1974,
  2. Rules and regulations covering this class as per SCB 1975 rule book appendix J,
  3. Riders of machines in this class must be at least 30 years of age at the date of competition.
19.23.6.2 This class will cover machines with factory motorcycle frames and standard forks, i.e. one made by a recognised motorcycle manufacturer:

  1. Motors will be Japanese 2-stroke and 4-stroke SOHC multi cylinder engines with a maximum of 2 valves per cylinder,
  2. Engines must be manufactured and raced prior to Dec 31st 1974,
  3. Rules and regulations covering this class as per SCB 1975 rule book appendix J,
  4. Riders of machines in this class must be at least 30 years of age at the date of competition.

19.23.7 Post Classic Class Sidecars

19.23.7.1 This class will cover machines using original factory frames and standard forks, i.e. one made by a recognised motorcycle manufacturer:

  1. Motors will be 2-stroke and 4-stroke 2 valve DOHC multi cylinder air cooled engines,
  2. Rules and regulations covering this class as per MA rule book.

19.23.8 Evolution Class Sidecars

19.23.8.1 Low Line and custom frames fitted with 2 valve DOHC multi cylinder air cooled engines:

  1. Rules and regulations covering this class as per MA rule book.

SECTION 19E: TECHNICAL REGULATIONS


19.13 SOUND EMISSIONS

Sound testing must be carried out at all permitted events; however, it is not mandatory to test all machines.

19.13.1 Specifications

19.13.1.1 Sound emissions are set out in the table below:

[Prior to 1st October 2015] 30 metres (from side of track) ride by test

DISCIPLINE LIMIT dB(A)
Speedway (including ATVs) 95
Record Attempts No limit

[Effective 1st October 2015] 2 Metre Max method

DISCIPLINE LIMIT dB(A)
Speedway (including ATVs) 115 + 3dB(A) tolerance, total 118dB(A) maximum
19.13.1.2 Where government regulations or planning orders exist in relation to lower sound emissions or where a venue has lower sound emission requirements as part of the hire contract, the sound emission required will prevail over GCR 19.13.1.1.

19.13.2 Sound Control During Competition

19.13.2.1 The Sound Control Officer (SCO) must arrive in sufficient time for discussions with the Clerk of the Course Referee and other Technical Officials in order that a suitable test site and testing policy can be agreed.
19.13.2.2 Machines can be tested before, or after competing in an event, chosen by ballot, or as required by a Steward, Clerk of the Course Referee or SCO.

19.13.3 Use of Sound Level Meters

19.13.3.1 Sound testing apparatus must:

  1. Comply with international standard IEC 651, Type 1 or Type 2.
  2. Include a compatible calibrator, which must be used immediately before testing begins and always just prior to a re-test if a disciplinary sanction may be imposed.
19.13.3.2 Sound testing apparatus must be set to

  1. ‘Fast response’
  2. ‘A’ weighted,
  3. Select range High 80~130 dB,
  4. Activate the function MAX MIN – set on MAX

19.13.4 ’30 Metre ride by’ test

19.13.4.1 The sound levels will be measured with the sound meter/microphone fixed on a tripod, in the horizontal position, 30 meters from the edge of the track at a high speed point.

19.13.5 ‘2 Metre Max’ test

19.13.5.1 ‘2 Metre Max’ Set up of the sound meter and the motorcycle:

  1. The sound levels will be measured with the sound meter/microphone fixed on a tripod, in the horizontal position, at the rear of the motorcycle.
  2. For the place and position of the motorcycle, ensure that there are no solid obstacles within a 10 meter radius of the microphone.
  3. The sound meter will be positioned at a distance of two metre behind the motorcycle, with an angle of 45° away from the centerline, on the exhaust side and at a height of 1.35 metre above the ground, with the sound meter level.
  4. The two metre distance is measured from the point where the centre of rear tyre touches the ground.
  5. It is preferred that the tests are conducted on soft ground, to prevent reverberation, i.e. grass or fine gravel.
  6. In other than moderate wind, machines should face forward in to the wind direction.
  7. The ambient sound level must remain lower than 100 dB/A.
19.13.5.2 ‘2 Metre Max’ Positioning of the motorcycle:
The reference points:

  1. For a motorcycle: the contact point of the rear wheel on the ground.
  2. For motorcycles fitted with two exhaust outputs, the measurement will be made on the side of the air intake. If a central positioned air intake is used, both sides will be tested.
  3. For Sidecars: the contact point of the side wheel on the ground.
  4. For ATV vehicles: the vertical line to the ground from the centre point of the rear axle.
  5. For ATV vehicles with exhaust outlet moved from the median axis, the measurement will be made on the offset side. To make repetitive measurements, all motorcycles can be positioned into a small frame fixed on the ground.
19.13.5.3 ‘2 Metre Max’ method:

  1. The measurement is made with the motorcycle on its wheels, with a hot engine.
  2. During a sound test, machines not equipped with a gear box neutral must be placed on a stand.
  3. The SCO should stand beside the motorcycles, opposite the microphone and not screen or stand between the bike and the microphone. An assistant, placed on the left side of the motorcycle, shall disengage the clutch.
  4. The SCO shall open the throttle as fast as possible until full open throttle (instantly, within 0.3 seconds) and keep at max engine ‘rpm’ for at least one second. To end, the SCO will release the throttle quickly.
  5. If the result exceeds the limit, including ‘after fire’, the Inspector shall test the motorcycle a maximum of 2 more times.
  6. For motorcycles equipped with an engine rpm limiter, opening the throttle will be made – instantly, within 0.3 seconds – and kept open until at least one second has evolved and/or when there is an audible sign of over revving the engine.
  7. For motorcycles without an engine ‘rpm’ limiter, the opening of the throttle will have to be lower than two seconds and/or when there is an audible sign of over-revving the engine.
  8. If the engine tends to suffocate, close the throttle slightly and re-open the throttle.
  9. If detonations appear, the measurement must be started again.
  10. The numbers obtained from the test shall not be rounded down.
  11. For the sound level measurement, the handling of the throttle is limited only to the SCO, who shall open the throttle himself in order to minimize the influence by another operator (for that, it is helpful to have the microphone equipped with an extension cable to the sound meter).
19.13.5.4 Tests shall not take place in the rain

19.13.6 Machine Testing

19.13.6.1 If a machine fails, it can be represented for re-testing.
19.13.6.2 No person may compete in any event on a machine whose noise emissions exceed the prescribed levels.
19.13.6.3 A machine which does not comply with the sound limits can be presented several times.

19.14 FUEL: GENERAL

19.14.1 Fuel Warning

19.14.1.1 Fuels and lubricants are highly specialised substances and participants must be aware they may contain substances that are extremely dangerous to human health if misused, inhaled or allowed to contact skin.
19.14.1.2 Some of the components of fuel and lubricants are suspected of having the potential to cause cancer in rare circumstances.
19.14.1.3 The use of petrol as a general cleaning and washing agent is a common misuse of a potentially dangerous substance.
19.14.1.4 Fuels should be used and stored with extreme care and in accordance with the manufacturer’s instructions.

19.14.2 Fuel Testing

19.14.2.1 For any event, meeting or series, the relevant controlling body may direct that no fuels other than fuels of prescribed specifications and from a prescribed source may be used.

  1. Tests to ensure that only prescribed fuels are used in an event, meeting or series may be administered at any time and place during the course of the same,
  2. The Referee, Race Director or Chief Scrutineer may direct the administration of fuel tests.
19.14.2.2 Fuel tests must comply with the following procedures:

  1. All containers for holding samples must be clean and constructed of robust non-reactive impermeable material, must be sealable, and must have provision for identification,
  2. Equipment used for the extraction of fuel from machines must be clean and constructed of fuel non-reactive material,
  3. All samples must be divided into two lots (Sample A and Sample B) of not less than 5ml each, which must be placed in separate containers,
  4. Once samples are placed in containers, the containers must immediately be sealed and identified by reference to the machine from which the sample was taken. This information must be entered on a fuel sample certificate which must certify the date, place and time of taking the sample, the identity of the machine from which the sample was taken and the identity of the rider,
  5. Both samples must remain in the control of the official who administered the test.
  6. The rider or the representative must sign the fuel sample certificate acknowledging samples have been taken and are sealed,
  7. All samples held by the official must be delivered as soon as practicable after the competition to the Relevant Controlling Body which must deliver the Sample A as soon as practicable to a laboratory approved by MA where they must be tested for content and quality in accordance with standard scientific procedures,
  8. The Relevant Controlling Body must as soon as practicable after receipt of the results notify the rider or rider’s team representative and MA,
  9. If the rider is dissatisfied with the test result of sample A, they may request sample B be tested at an MA approved laboratory in their presence.

19.14.3 Refuelling

19.14.3.1 During refuelling, each machine must be stationary with the engine stopped.
19.14.3.2 Refuelling will be deemed to have commenced when the fuel tank has been opened and completed when the tank is closed.
19.14.3.3 Smoking is strictly prohibited in areas where refueling is permitted.
19.14.3.4 Riders are liable for exclusion from an event for failing to adhere to GCR 19.14.3.3, and are responsible for the actions of their mechanics and support team members.

19.14.4 Homologation of Fuel

19.14.4.1 Unleaded fuel produced by an oil company for sale in the Australian general transport fuel market through retail petrol pumps in at least five states does not have to be homologated. For the avoidance of doubt this means the fuel must be available for sale on demand from a roadside bowser outlet at each of at least five separate service stations in each of at least five Australian states or territories.
19.14.4.2 Organisations seeking homologation of fuel must provide MA with:

  1. Two one-litre sealed containers of the fuel for analysis,
  2. Details of the fuels characteristics,
  3. The distribution network,
  4. The price structure,
  5. A homologation fee of $2,500 in the first year and $2,000 per year thereafter.
19.14.4.3 Fuels approved under this GCR will be published at www.ma.org.au.

19.14.5 Fuel: Speedway

19.14.5.1 Fuel must:

  1. Be unleaded, and
  2. Be no more than 100 RON; and
  3. Contain no additives other than those added at the point of manufacture except for lubricating oil for 2-stroke engines; and
  4. Be readily available from retail petrol pumps within Australia; or
  5. Be a brand of fuel homologated by MA that is compatible with the “Fuel Quality Standards Act 2000”.
19.14.5.2 For Senior and Classic competition, and 250cc and 350cc Junior machines, the following fuels are permitted:

  1. Commercially available pure Methanol with no additives other than lubricating oil, or
  2. Unleaded fuel which complies with GCR 19.14.5.1.

19.15 ENGINES

19.15.1 Reciprocating Engines

19.15.1.1 Formulae for calculation of capacities and classes
Cubic capacity = (D2 x 3.1416 x C x N)
4
Where:D = Bore in centimetres,
C = stroke in centimetres,
N = Number of cylinders.

19.15.2 Engine Capacity Tolerances

19.15.2.1 Unless otherwise specified in the following table, the actual engine capacity of a machine competing in a capacity class may not exceed the prescribed capacity for that class by more than 2%:

CLASS

PERMITTED EXCESS

Sidecar Cycle car machines except Road Race 5%
80cc 2 stroke machines manufactured prior to 1/1/95 5%
Record attempts and senior Speedway / Track. Nil
65cc & 85cc machines Nil

19.15.3 250/350/500 Solo

19.15.3.1 Engine capacity must not exceed 250cc, 350cc, or 500cc.
19.15.3.2 Engines must be:

  1. Single cylinder,
  2. 4-stroke,
  3. Four valves maximum,
  4. Fitted with one carburettor of 34mm +/- 0.1mm diameter, and
  5. One spark plug.
19.15.3.3 2-valve engines may use a carburettor of 36mm +/- 0.1mm diameter.
19.15.3.4 The carburettor measurements must:

  1. Remain constant over a distance of no less than 25mm on the engine side and 5mm on the air intake side,Be taken from the edges of the throttle valve or throttle butterfly.

Figure 19.15.3.4 Carburettor dimensions

19.15.3.5 The fuel output section of the carburettor must be of circular shape.
19.15.3.6 Direct injection must comply with the above carburettor sizes.
19.15.3.7 Supercharging and turbocharging are not permitted.

19.15.4 Sidecar Engines

19.15.4.1 An event may be restricted to machines of a capacity of no more than 500cc, which will be known as a 500cc class event.
19.15.4.2 For a machine competing in a 500cc class event, the engine must comply as follows:

  1. Where electronic fuel injection is installed, it must be of a standard production type,The engine may not be turbocharged or supercharged.
19.15.4.3 For a machine competing in any event other than a 500cc class event, the engine must comply as follows:

  1. The engine capacity must not exceed 1045cc,
  2. Supercharged and turbocharged engines must not exceed 500cc,
  3. On liquid cooled engines an overflow pipe must be used to direct any overflow of coolant away from the rider and passenger.
  4. Titanium may be used if fitted as OEM.

19.16 FRAMES AND PARTS

19.16.1 Streamlining

19.16.1.1 All streamlining fitted to motorcycles or sidecars must be free of any sharp edges on exposed extremities.
19.16.1.2 For fibreglass construction, edges must be rounded to their own thickness but need not be wired.

19.16.2 Fuel Tanks

19.16.2.1 Fuel tanks may be constructed from any material that has been approved by the Australian Standards Association as a petrol or fuel container material.

19.16.3 General Frames and Parts

19.16.3.1 Titanium: The use of Titanium is not permitted in the construction of the frame, the front forks, the handlebars, the swingarms or the wheel axles of any machine.
19.16.3.2 Handlebars must:

  1. Be fitted to the unsprung part of the front suspension,
  2. Be securely plugged so as to present a flush or rounded end,
  3. Have a width of not more than 900mm nor less than 700mm, and
  4. Have handlebar grips attached to the ends with a maximum length of 150mm
19.16.3.3 Clutch levers must:

  1. Have ball ends with a minimum diameter of 19mm,
  2. Measure no more than 200mm from the fulcrum to the extremity of the ball.
19.16.3.4 Throttle controls and mechanical carburettor linkages must:

  1. Be self-closing,
  2. Be enclosed so as to prevent jamming.
19.16.3.5 There must be a kill switch which must:

  1. Cut out the ignition,
  2. Operate on the primary circuit,
  3. Be fitted with a lanyard which must:
    1. Have a total extended length not exceeding 500mm,
    2. Be attached around the rider’s right wrist when the machine is in motion,
    3. Not be secured to the handlebar unless by a readily torn material.
19.16.3.6 Stops or other devices must be fitted to ensure a minimum clearance of 30mm between the handlebars and any other part of the machine when on full lock.
19.16.3.7 Steering must be:

  1. Direct,
  2. Through the front wheel,
  3. By a classic telescopic fork, leading link, earles, or girder type.
19.16.3.8 Light alloys may not be used for wheel axles.
19.16.3.9 The front wheel must be fitted with a knockout spindle or an approved clamp to fasten on the fork tips.
19.16.3.10 Brakes may not be fitted.
19.16.3.11 For any cast or welded wheel, the gaps between the spokes must be filled in.
19.16.3.12 Machines need not carry number plates.
19.16.3.13 FIM homologated dirt deflectors must be fitted to all solo Speedway machines with the exceptions of 125cc Junior machines, and 500cc upright engined machines when used in classic Speedway events.

Figure 19.16.3.13 Dirt deflector detail

19.16.3.14 Primary chain guard protection must be provided by:

  1. Fully enclosing the chain with a steel guard, or
  2. If a plastic, fibreglass or part open chain guard is used, a steel bolt of not less than 10mm minimum diameter, placed outside the bottom rear quadrant of the clutch sprocket. This bolt, if damaged, must be replaced.

Figure 19.16.3.14 Chain guard detail

19.16.3.15 Mechanical carburettor linkages must be:

  1. Enclosed by a suitable material, or
  2. Fully enclosed by a box.

19.17 CLASS TECHNICAL REGULATIONS: SOLO

19.17.1 Solo

19.17.1.1 Rear chain guards must:

  1. Be fitted to the back end of the rear assembly of machines,
  2. Provide protection where the rear chain enters onto the rear wheel sprocket.
19.17.1.2 Exhaust systems must not extend beyond the outer circumference of the rear wheel rim and tyre.
19.17.1.3 The gap between the silencers and the tyre must not exceed 60mm.
19.17.1.4 Exhaust gases must be discharged from the system horizontally and parallel to the centre line of the machine.

Figure 19.17.1.4 250/350/500 Solo exhaust detail

19.17.1.5 [effective 1st October 2015] Only FIM homologated exhaust with heat shield fitted to be used.
19.17.1.6 The exhaust pipe must be fixed to the cylinder head and frame with a minimum of three clips, one of which must be attached to the cylinder head.
19.17.1.7 The silencer must be attached to the frame with at least one clip. A second moveable coupling must be fitted from the first third of the silencer to the frame with steel cable of at least 3mm or strong steel spring.
19.17.1.8 The diameter of the exhaust pipe must not exceed 50mm or an equivalent area and must remain constant up to the silencer.
19.17.1.9 The outlet area of the silencer must remain constant over a length of 50mm, must not exceed 45mm, or an equivalent area, and must not be perforated.
19.17.1.10 The outside shell of the silencer must form one unit. The end of the pipe must be cut at right angles.
19.17.1.11 Where turbo or similar types of approved silencers are fitted:

  1. The silencer must be mounted in a position to discharge the exhaust fumes at a minimum deflection of 15° from the centre line of the machine and a maximum of 30° to the ground,
  2. The silencer must not be altered in shape or modified in any way, other than a welded transition section to allow clamping to the exhaust pipe,
  3. The maximum internal outlet diameter must be 47mm and must remain as manufactured.
19.17.1.12 Machines must be fitted with a front mudguard that extend at least 5° ahead of a vertical line running through the centre of the front wheel axle and at least 5° under the top edge of the mud-shield protecting the front of the engine.
19.17.1.13 The rear mudguard must extend at least 5° behind a vertical line running through the centre of the rear axle. Distance between rear mudguard and top of rear tyre must be no more than 35mm plus 5mm tolerance. If a push bar is used, it should be made in one piece, of strong material which should not break under impact and must not protrude any higher than 35mm above the rear mudguard.
19.17.1.14 Rear tyre requirements are as follows:

  1. Subsequent modification of tyres is not permitted,
  2. The overall width must not exceed 100mm,
  3. The tyre must be mounted and inflated to 14psi at Scrutineering,
  4. The tread depth must not exceed 8mm measured at right angles to the face of the tread,
  5. All blocks in the same circumference must be of the same depth,
  6. The space between the blocks must not exceed 9.5mm across the tyre or 13mm in a circumferential direction,
  7. The space between the blocks must not exceed 22mm. The space across C in the relevant diagram must not extend completely across the tyre measured at right angles to the wall of the tyre, unless broken by a block.

Figure 19.17.1.13 Solo tyre details

19.17.1.15 The front tyre may be of any size or type but limited to an overall width of 80mm.
19.17.1.16 Tyres may not be treated by chemicals, tyre warmers or other means which tend to alter the shape, minimum shore hardness, construction or other characteristics.
19.17.1.17 The minimum weight, without fuel, is 77kg.
19.17.1.18 Footrests:

  1. Must be on the right hand side of the machine and must not exceed 320mm in length measured from the centre line of the motorcycle,
  2. Must have metal protection at the end of at least 8mm radius,
  3. May be folding and, if so, must be fitted with a device which automatically returns them to the normal position.
19.17.1.19 Rear suspension is prohibited.
19.17.1.20 A single gear only is permitted.

Figure 19.17.1.19 Solo speedway machine: Side and top view

19.18 250CC INTERMEDIATE SPEEDWAY

19.18.0.1 This class is for State level competition only.
19.18.0.2 Promoters intending to conduct competition for 250cc intermediate class must:

  1. Obtain approval from the Speedway Commission, in addition to obtaining approval from the State Controlling Body,
  2. Provide the Commission with a report on the merits of the class. The report should include statements from riders and officials and engineering personnel.

19.18.1 250cc Intermediate Speedway Engines

19.18.1.1 4-stroke single cylinder engine up to 250cc.
19.18.1.2 If the engine is fitted with a gearbox, the gearshift lever must be removed and the machine must remain in one gear during racing.

19.18.2 250cc Intermediate Speedway Frames and Parts

19.18.2.1 Frames and parts must be in accordance with GCR19.16.

19.19 250/350CC SOLO SPEEDWAY

19.19.0.1 Competition for 250cc and 350cc machines is allowed under Speedway Rules.
19.19.0.2 Junior/senior must be assessed by an MA accredited coach prior to competition.
19.19.0.3 Riders using these machines must be:

  1. A minimum age 250cc 13 years to under 16 years, minimum age 350cc 14 years to under 16 years,
  2. Junior riders can practice or demonstrate on a 250cc machine from the age of 12 years and 9 months,
  3. Junior riders can practice on a 350cc machine from the age of 13 years and 9 months,
  4. Senior riders can ride 250cc or 350cc machines,
  5. No juniors are permitted on track with seniors.
19.19.0.4 350cc machines are not eligible to enter the Australian Championship from 1st January 2014.
19.19.0.5 Other special conditions will apply to the use of these machines and these conditions will be made available from MA upon request.
19.19.0.6 For junior 250cc machines only, tracks must be no more than 350 metres in length, and licensed by MA or the relevant State Controlling Body.
19.19.0.7 Engines:

  1. must be OEM 250cc and 350cc;
  2. carburettor size 34mm +/- 0.1mm;
  3. Valves and valve springs may be changed but must be the same size as OEM;
  4. Pistons may be changed, replacement pistons must be the same compression as OEM;
  5. Use of Titanium is not permitted.

19.20 JUNIOR SPEEDWAY: 50cc and 125cc SOLO

(other junior classes are as above)

19.20.1 Engines

19.20.1.1 The use of Titanium in junior Speedway engines is prohibited.

19.20.2 50cc Solo

19.20.2.1 Eligible machines are any production solo motorcycles utilising 50cc 2 or 4-stroke engines. All machines must be OEM.

  1. Engine capacity must not exceed 50cc
  2. The gearbox must not have more than one gear for 2-stroke machines and three gears for 4-stroke machines.
  3. The clutch must not be of other than OEM and other than of a centrifugal type
  4. Rear wheel must not be other than 10″ (254mm)
  5. Front wheel must not be other than 10″ (254mm) or other than 12″ (304mm)
  6. A lanyard kill switch must be fitted
  7. Working brakes must be retained
19.20.2.2 The following may be altered.

  1. Parts equivalent to OEM may be fitted.
  2. Seat
  3. Colour
  4. Mudguards
  5. Handlebars
  6. Grips
  7. Levers
  8. Cables
  9. Chains
  10. External gearing
  11. Tyre brand and pattern
  12. Foot pegs and foot peg position
  13. Rear shock absorber may be removed and replaced with a solid replacement
  14. Throttle limiting devices may be removed
  15. Restrictor washers in the header pipe abutting cylinder barrel may be removed.

19.21 125cc SOLO

19.21.0.1 Wheelbase must not exceed 1375mm.
19.21.0.2 Rear rim diameter must not exceed 17″ (432mm).
19.21.0.3 Rear tyres must:

  1. Have Trial or Speedway pattern tread tyres,
  2. Not exceed 90mm x 432mm (3.5″ x 17″),
  3. Not be modified.
19.21.0.4 Front rim diameter must not exceed 482mm (19″).
19.21.0.5 Front tyres must:

  1. Have Trial pattern or Speedway tread,
  2. Have a diameter not exceeding 19″ (482mm),
  3. Not be modified.

19.21.1 Exhaust mounts

  1. The exhaust must have at least three mounts to the motorcycle,
  2. The silencer must be attached to the frame with at least one clip. A second moveable coupling must be fitted from the first third of the silencer o the frame with a steel cable of at least 3mm or a strong steel spring.
19.21.1.1 If the engine is fitted with a gearbox, the gearshift lever must be removed and the machine must remain in one gear while racing.
19.21.1.2 The engine capacity must not exceed 125cc with a +1mm tolerance of the bore diameter.
19.21.1.3 A single cylinder, 4-stroke engine, fitted with one carburettor, of a mass produced type must be used.
19.21.1.4 The cylinder head must be as follows:

  1. 2-, 3- or 4-valve cylinder heads can be fitted, but 3- and 4-valve heads must retain manufacturers’ specifications,
  2. The action of the valves must be controlled by valve springs,
  3. The cylinder head may be ported and, if damaged in use, bearing journals may be bored and bearings replaced with either roller or bronze bearings,
  4. For 2-valve heads, maximum valve size must be:
    1. Exhaust – 25mm, and Inlet – 30mm.
19.21.1.5 Carburettors no bigger than 24mm can be fitted.
19.21.1.6 Inlet manifold must be round for entire length.
19.21.1.7 Early model crankcases may be used with late model heads but the compression ratio must not exceed 9.7:1.
19.21.1.8 Any type of ignition system may be used.
19.21.1.9 Later model parts, or parts of different manufacture, may be installed.
19.21.1.10 The “Shupa” brand junior Speedway machine is approved for competition in the Junior 125 Solo class when the machine is fitted with the 2- or 3-valve head.

19.22 CLASS TECHNICAL REGULATIONS: SIDECAR

19.22.1 Sidecar: General

19.22.1.1 The overall width must not exceed 1500mm.
19.22.1.2 The length from the leading edge of the front tyre to the outside of the rear mudguard must not exceed 2600mm.
19.22.1.3 Overall height must not exceed 1200mm.
19.22.1.4 The wheel base taken at axle height from the centre of the front axle to the centre of the rear axle must measure between 1280mm and 1800mm.
19.22.1.5 The wheel track, taken between the tracks left by the centre lines of the rear motorcycle wheel and the sidecar wheel, must measure between 500mm and 1100mm.
19.22.1.6 The centre lines of the tracks made by the front and rear wheels of the motorcycle when the machine is proceeding directly forward must be no further apart than 75mm.
19.22.1.7 The width of the kneeling pad on the offside of the machine must not exceed 400mm.
19.22.1.8 The tubing used in the construction of the main frame of a sidecar motorcycle must have a minimum wall thickness of 1.5mm.
19.22.1.9 The sidecar must be on the left of the motorcycle and, if not an integral part of the chassis, must be fixed to the motorcycle in at least four places.
19.22.1.10 The sidecar wheel must be staggered inwards. If the sidecar wheel is mounted by a plate on both sides, the diameter of the axle must exceed 12mm.
19.22.1.11 The sidecar frame must have a continuous bar along the exterior of the sidecar wheel.

Figure 19.22.1.11 Speedway sidecar dimensions

19.22.1.12 The streamlining:

  1. Must not be in front of a vertical line drawn through the leading edge of the front tyre,
  2. Must not to the rear of a vertical line drawn through the exterior edge of the rear rim,
  3. May come into contact with the ground with the rear wheel raised 300mm from the ground.
19.22.1.13 In all handlebar positions, there must be a space of at least 30mm between the streamlining and the ends of the handlebars, including any attachments.
19.22.1.14 Aero panels, side panels and similar attachments may be used provided they are:

  1. Constructed of metal, fibreglass or polycarbonate material,
  2. Free of sharp or protruding edges, and
  3. Not dangerous to the rider or other competitors.
19.22.1.15 Horizontal wings and aerodynamic friction assisting devices are prohibited.
19.22.1.16 Fuel tanks must be of a material approved by the Australian Standards Association for fuel containers.
19.22.1.17 Drive must only be transmitted through the rear wheel of the motorcycle.
19.22.1.18 Wheel, rim and tyres must be the following:

  1. Solo two ply and four ply 75mm (3″) tyres may not be used on rear rims exceeding 127mm (5″) in width,
  2. The rear wheels minimum 450mm (18″) maximum 475mm (19″) diameter, rim width maximum 125mm (5″),
  3. Knobby tyres may not be used,
  4. Speedway or universal trial block pattern tyres only to be used,
  5. Tyres may be cut or grooved.
19.22.1.19 The area inside a spoked wheel must be covered by a disc or shield so as to prevent a rider’s or passenger’s feet or hands coming into contact with the spoked area.
19.22.1.20 Any space between the sidecar body and the rear or sidecar wheel of the motorcycle greater than 76mm must be decked so as to prevent the passenger’s hands or feet entering between the chassis bars.
19.22.1.21 Any open area between the footrests, the continuous bar and the right hand side to the direction of travel must be filled in with a suitable material so as to stop a rider or passenger from trapping their feet.
19.22.1.22 Where the sidecar wheel is mounted with a bracket on one side only, the axle diameter must be a least 20mm.
19.22.1.23 Stub axles must have a minimum diameter at the base plate of 40mm.
19.22.1.24 The sidecar wheel must be covered by a non-rotating shield which must:

  1. Be constructed of sheet metal, fibreglass or similar material and be flat or nearly so,
  2. Be securely fitted to the sidecar,
  3. Incorporate a 25mm horizontal crash bar surrounding the outer side of the sidecar wheel at floor level,
  4. Cover at least the outward facing spoked area, and,
  5. If trials tyres are fitted, cover the tyre area as well.

Figure 19.22.1.24 Rear guard and flap assembly details

19.22.1.25 The sidecar wheel must be either spoked, moulded type mag, or other approved wheel. Riveted type mag wheels are not permitted.
19.22.1.26 The fitting of a front mudguard is not compulsory.
19.22.1.27 Rear mudguards:

  1. Must be valanced on both sides down to axle level, to a maximum of 170mm from ground level
  2. Must be fitted with a one piece flexible mud flap without any slots, which:
    1. Is a minimum thickness of 6mm and be of a reinforced belting type rubber,
    2. Is attached to the rear mudguard,
    3. Ends no more than 20 mm above ground level,
    4. Is attached to three sides of the mudguard and projects forward by a minimum of 75 mm on each side,
    5. Is a consistent width from top to bottom,
    6. And/or be fitted with an FIM homologated dirt deflector,
  3. May be incorporated into the passenger’s seat moulding,

Figure 19.22.1.27 Rear mudguard

19.22.1.28 Promoters may require additional specifications for the protection of spectators.
19.22.1.29 Footrests must be on the right hand side to the direction of travel and linked by a continuous bar.
19.22.1.30 All exterior barwork and tubework ends must be plugged or capped so as to present a flush or convex end.
19.22.1.31 A suitable handhold must be provided for the passenger on the offside of the machine and near the front.
19.22.1.32 Exhaust fumes must be discharged towards the rear of the machine. Exhaust fumes must not be discharged so as to raise dust, foul the tyres or inconvenience the passenger or any other rider or passenger.
19.22.1.33 The exhaust must be attached to the machine at a minimum of three locations, two on the frame, (one to the rear), in addition to the one on the cylinder head.

19.22.2 Sidecar: Junior

19.22.2.1 Engine capacity must not exceed 250cc. Motors must be 4-stroke only.
19.22.2.2 Machines must be fitted with an unmodified 4-stroke production engine and may be fitted with an operating gearbox. OEM engine electrics must also be used.
19.22.2.3 Junior sidecar competitors on junior sidecar machines are: allowed to compete on senior tracks to a maximum length of 450 metres. Rider and passenger must be aged 14 to 16 years of age. Riders must be assessed by an accredited coach prior to competition.
19.22.2.4 Overall length from the leading edge of the front tyre to the outside edge of the rear mudguard must not exceed 2100mm.
19.22.2.5 Overall width must not exceed 1250mm.
19.22.2.6 Wheelbase, taken at axle height and from the centre of the front axle to the centre of the rear axle, must measure between 1,500mm and 1,200mm.
19.22.2.7 Stub axles must have a minimum diameter at the base plate of 25mm.
19.22.2.8 Wheel track, taken between the tracks left by the centre lines of the rear motorcycle wheel and the sidecar wheel, must measure between 800mm and 600mm.
19.22.2.9 The width of the kneeling pad on the off side of the motorcycle must not exceed 300mm.
19.22.2.10 The sidecar wheel must be covered by a non-rotating shield which must:

  1. Be fitted securely to the sidecar,
  2. Incorporate a 20mm horizontal crash bar surrounding the outer side of the sidecar wheel at floor level,
  3. Cover at least the outward facing spoked area, and
  4. If trials tyres are fitted, the tyres.
19.22.2.11 Rear mudguards:

  1. Must be valanced on both sides down to axle level,
  2. Must be fitted with a one piece flexible mud flap without any slots, which:
    1. Is a minimum thickness of 6mm and be of a reinforced belting type rubber,
    2. Is attached to the rear mudguard,
    3. Ends no more than 20mm above ground level,
    4. Is attached to three sides of the mud-guard and projects forward by a minimum of 75mm on each side,
19.22.2.12 Front and rear rim diameter for the motorcycle must not exceed 19″ (482mm).
19.22.2.13 Rear rim width for the motorcycle must not exceed 102mm and trial or Speedway pattern tread tyres must be fitted.
19.22.2.14 Hand holds and footrests must comply with the requirements for senior Speedway sidecars.
19.22.2.15 Sidecar wheels and tyres:

  1. Knobby tyres are not permitted,
  2. Cutting or grooving tyres is permitted,
  3. The sidecar wheel must be either spoked, moulded type mag, or other approved type wheel. Riveted type mag wheels are not permitted.

19.23 CLASS TECHNICAL REGULATIONS: CLASSIC SPEEDWAY

19.23.1 Classic Speedway

19.23.2 Eligibility: Solo

19.23.2.1 Engines must have been manufactured before 31st December 1976.
19.23.2.2 Competitors must be aged at least 30 years at the date of the competition.

19.23.3 Frame: Classic Speedway

19.23.3.1 The frame must:

  1. Have a front wheel diameter of 23″ (594mm),
  2. Have a rear wheel diameter of 19″ (482mm),
  3. Have rear tyres with a maximum tread pattern depth of 8mm,
  4. Not be fitted leading-link front forks.

19.23.4 Engine Specifications: Solo

19.23.4.1 The engine must:

  1. Be single cylinder,
  2. Be 2-valve with push rod operation,
  3. Have a single spark plug,
  4. Have a maximum capacity of 500cc +/- 2% tolerance,
  5. Be vertical in the chassis,
  6. Be fitted with a round slide carburettor of 38mm maximum bore,
  7. Not be fitted with a centre port cross flow cylinder head.

19.23.5 Eligibility: Classic and Post Classic Sidecars

19.23.5.1 For the Classic Class – British, European & American and Classic Class – Japanese Sidecar riders must be aged 30 years or over at the date of competition, Sidecar passengers must be 16 years or over at the date of competition,
19.23.5.2 Machines and all parts used in their construction are to be commercially available in their selected era ONLY
19.23.5.3 All machines must comply with GCR 19.16.3.5 c)(kill switch).
19.23.5.4 Maximum standard engine capacity of 1020cc and no reconditioning tolerance is allowed.
19.23.5.5 Only machines of the type raced on Australian Speedways in the selected era will be eligible.

19.23.6 Classic Class: British, European & American Sidecars

19.23.6.1 This class will cover machines using original factory motorcycle frames and standard forks, i.e. one made by a recognised motorcycle manufacturer.

  1. Motors will be 4-stroke 2 valves per cylinder, air cooled and a maximum of two cylinders, manufactured and raced prior to Dec 31st 1974,
  2. Rules and regulations covering this class as per SCB 1975 rule book appendix J,
  3. Riders of machines in this class must be at least 30 years of age at the date of competition.
19.23.6.2 This class will cover machines with factory motorcycle frames and standard forks, i.e. one made by a recognised motorcycle manufacturer:

  1. Motors will be Japanese 2-stroke and 4-stroke SOHC multi cylinder engines with a maximum of 2 valves per cylinder,
  2. Engines must be manufactured and raced prior to Dec 31st 1974,
  3. Rules and regulations covering this class as per SCB 1975 rule book appendix J,
  4. Riders of machines in this class must be at least 30 years of age at the date of competition.

19.23.7 Post Classic Class Sidecars

19.23.7.1 This class will cover machines using original factory frames and standard forks, i.e. one made by a recognised motorcycle manufacturer:

  1. Motors will be 2-stroke and 4-stroke 2 valve DOHC multi cylinder air cooled engines,
  2. Rules and regulations covering this class as per MA rule book.

19.23.8 Evolution Class Sidecars

19.23.8.1 Low Line and custom frames fitted with 2 valve DOHC multi cylinder air cooled engines:

  1. Rules and regulations covering this class as per MA rule book.