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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 16 D TECHNICAL REGULATIONS


16.11 MACHINE ELIGIBILITY

16.11.1 Eligible Machines

16.11.1.1 Only machines conforming to the requirements set out in this chapter will be accepted for competition.
16.11.1.2 The onus of proof of eligibility shall rest wholly upon the rider or entrant of the machine. Service and parts manual publication dates are not proof of eligibility.

16.12 SOUND EMISSIONS

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

16.12.1 Specifications

16.12.1.1 Sound emissions are set out in the table below:

30 metres (from side of track) ride by test

DISCIPLINE LIMIT dB(A)
Classic/Post Classic Motocross and

Classic/Post Classic
Dirt Track & Track (incl. Quads)
95
Record Attempts No limit

16.12.2 Sound Control during Competition

16.12.2.1 The Sound Control Officer (SCO) must arrive in sufficient time for discussions with the Clerk of the Course and other Technical Officials in order that a suitable test site and testing policy can be agreed.
16.12.2.2 Machines can be tested before, or after competing in an event, chosen by ballot, or as required by a Steward, Clerk of Course or SCO.
16.12.2.3 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 General Competition Rule 16.12.1.1.

16.12.3 Use of Sound Level Meters

16.12.3.1 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.
16.12.3.2 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,
16.12.3.3 ’30 Metre ride by’ test

  1. The sound levels will be measured with the sound meter/microphone fixed on a tripod, in the horizontal position, 30 metres from the edge of the track at a high speed point.
16.12.3.4 Tests shall not take place in the rain

16.12.4 Machine testing

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

16.13 FUEL

16.13.1 Fuel Warning

16.13.1.1 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.
16.13.1.2 Some of the components of fuel and lubricants are suspected of having the potential to cause cancer in rare circumstances.
16.13.1.3 The use of petrol as a general cleaning and washing agent is a common misuse of a potentially dangerous substance.
16.13.1.4 Fuels should be used and stored with extreme care and in accordance with the manufacturer’s instructions.

16.13.2 Fuel Testing

16.13.2.1 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 Clerk of Course, Race Director or Chief Scrutineer may direct the administration of fuel tests.
16.13.2.2 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.

16.13.3 Refuelling

16.13.3.1 During refuelling, each machine must be stationary with the engine stopped.
16.13.3.2 Refuelling will be deemed to have commenced when the fuel tank has been opened and completed when the tank is closed.
16.13.3.3 Smoking is strictly prohibited in areas where refuelling is permitted.
16.13.3.4 Riders are liable for exclusion from an event for failing to adhere to General Competition Rule 16.13.3.3, and are responsible for the actions of their mechanics and support team members.

16.13.4 Homologation of Fuel

16.13.4.1 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.
16.13.4.2 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.
16.13.4.3 Fuels approved under this General Competition Rule will be published at www.ma.org.au.

16.13.5 Fuel: Classic Motocross and Classic Dirt Track

Classic Motocross and Classic Dirt Track fuel used for competition must be:

  1. Pure methanol with no additives other than lubricating oil, or,
  2. Unleaded fuel that is no more than 100 RON and meets rule 16.13.4.1,
  3. Which contains no additives other than those added at the point of manufacture except for lubricating oil, or,
  4. Be a brand of fuel homologated by MA that is compatible with the “Fuel Quality Standards Act 2000”, or,
  5. Leaded fuel provided that the fuel is purchased from suppliers approved by Environmental Australia.

16.14 ENGINES: GENERAL

16.14.1 Reciprocating Engines

16.14.1.1 The formula 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.

16.14.2 Engine capacity tolerances

16.14.2.1 The actual engine capacity of a machine competing in a capacity class may not exceed the prescribed capacity for that class by more than 5%.

16.15 MACHINES AND COMPONENTS

16.15.1 Centre and Side Stands

16.15.1.1 Centre and side stands must be removed for all types of competition

16.15.2 Handlebars

16.15.2.1 The ends of the handlebars or twist grip sleeves must be securely plugged so as to present a flush or rounded end.
16.15.2.2 Handlebar levers must:

  1. Have ball ends with a minimum diameter of:
    1. 15mm, for levers longer than 76mm,
    2. 10mm, for levers shorter than 76mm.
  2. Measure no more than 200mm from the fulcrum to the extremity of the ball.
16.15.2.3 Throttle controls must be self-closing.

16.15.3 Kick Start Levers

16.15.3.1 Kick start levers, other than transverse, must be folding.

16.15.4 Drive Chain Protection

16.15.4.1 Primary drives (the drive connecting engine to clutch) must be guarded so as to prevent direct access to the chain or sprockets with the fingers.
16.15.4.2 The guard must be constructed of:

  1. Metal having a minimum thickness of 1.6mm, which may be mesh or expanded metal provided the openings do not exceed 10mm, or
  2. Fibreglass having a minimum thickness of 3mm.
16.15.4.3 If a plastic, fibreglass or part open chain guard is used, a steel bolt of not less than 10mm diameter, placed outside the bottom rear quadrant of the clutch sprocket. This bolt, if damaged, must be replaced.
16.15.4.4 Projecting sprockets, which are not behind a clutch assembly or directly behind a frame member, must be guarded where the sprocket teeth are further than 30mm from a frame member or swinging arm.
16.15.4.5 A counter shaft sprocket which is more than 30mm from the outside of the swing arm pivot must be covered.
16.15.4.6 A chain guard made of suitable material must be fitted in a way to prevent trapping between the lower drive chain run and the final drive sprocket at the rear wheel.

16.15.5 Tyres

16.15.5.1 Tyres must comply with the following:

  1. Metal studs, spikes, chain, rope or other non-skid attachments may not be used unless permitted by the relevant Supplementary Regulations.
  2. Paddle or scoop treaded tyres may not be fitted.
16.15.5.2 Valve caps must be used for all competitions.

16.15.6 Mudguards

16.15.6.1 Either a rear mudguard or a seat must be fitted which extends at least 20 degrees to the rear of a vertical line drawn through the rear wheel axle.
16.15.6.2 Mudguards must be made of a material, which is not liable to cause personal injury if deformed.

16.15.7 Acceptable machines and components: Pre 60 Solo

16.15.7.1 Acceptable for the pre 60 class are machines and components built up to and including the 1959 model. The only exception to this General Competition Rule is where the model remains unaltered after this date.
16.15.7.2 Frames of any manufacture are acceptable within the suspension criteria and considerate of the era.
16.15.7.3 Front wheel travel will not exceed 178mm (7 inches) rear wheel travel will be limited to 102mm (4 inches) measured at the axle. Rear shock absorbers will be in the original position using the original mounting points.
16.15.7.4 Plastic and fibreglass is not permitted.
16.15.7.5 Engines and gearboxes must remain externally unchanged.
16.15.7.6 Period carburettors or Amal Mk1 Concentric.
16.15.7.7 Exhaust may be modified but must follow the original lines and meet All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.7.8 Folding footrests must be fitted.
16.15.7.9 Countershaft sprocket covers will be fitted.

16.15.8 Acceptable machines and components: Pre 65 Solo

16.15.8.1 Acceptable for the pre 65 class are machines and components built up to and including the 1964 model. The only exception to this rule is where the model remains unaltered after this date.
16.15.8.2 Frames of any manufacture are acceptable within the suspension criteria and considerate of the era.
16.15.8.3 Front wheel travel will not exceed 178mm (7 inches) rear wheel travel will be limited to 102mm (4 inches) measured at the axle.
16.15.8.4 Rear shock absorbers will be in the original position using the original mounting points.
16.15.8.5 Engines and gearboxes must remain externally unchanged.
16.15.8.6 Carburettors of any type pre 75 round slide may be used.
16.15.8.7 Exhaust may be modified but must follow the original lines and meet All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.8.8 Folding footrests must be fitted.
16.15.8.9 Countershaft sprocket covers will be fitted.

16.15.9 Acceptable machines and components: Pre 70 Solo

16.15.9.1 Acceptable for the pre 70 class are machines and components built up to and including the 1969 model. The only exception to this rule is where the model remains unaltered after this date.
16.15.9.2 Front wheel travel will not exceed 178mm (7 inches) rear wheel travel will be limited to 102mm (4 inches) measured at the axle. Rear shock absorbers will be in the original position using the original mounting points.
16.15.9.3 Engines and gearboxes must remain externally unchanged.
16.15.9.4 Carburettors; any type of pre 75 round slide may be used.
16.15.9.5 No reed valves permitted.
16.15.9.6 Exhaust may be modified but must follow the original lines and meet All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.9.7 Folding footrests must be fitted.
16.15.9.8 Countershaft sprocket covers will be fitted.
16.15.9.9 Yamaha XS1 and XS650 engines are eligible.
16.15.9.10 Acceptable follow on models pre 70

  1. AJS Stormer 250,
  2. Greeves griffon models,
  3. Yamaha AT1, DT1, CT1, RT1 pre reed block.

16.15.10 Acceptable machines and components: Pre 75 Solo

16.15.10.1 Acceptable for the pre 75 class are machines and components built up to and including the 1974 model. The only exception to this rule is where the model remains unaltered after this date.
16.15.10.2 Front wheel travel will not exceed 178mm (7 inches) rear wheel travel will be limited to 102mm (4 inches) measured at the axle. Rear shock absorbers will be in the original position using the original mounting points.
16.15.10.3 Engines and gearboxes must remain externally unchanged.
16.15.10.4 Carburettors; any type of pre 75 round slide may be used.
16.15.10.5 XS1 and XS650 engines are eligible.
16.15.10.6 Exhaust may be modified but must follow the original lines and meet All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.10.7 Folding footrests must be fitted.
16.15.10.8 Countershaft sprocket covers will be fitted.
16.15.10.9 Acceptable follow on models pre 75

  1. Honda CR125M1, XL250K1, XL350K1, MT250 and MT125,
  2. Yamaha YZ360B, DT250B,
  3. Suzuki TS400 (all).

16.15.11 Acceptable machines and components: Pre 78 Solo

16.15.11.1 Acceptable for the Pre 78 classes:

  1. Machines and components that are limited to the 1975, 1976, 1977 models alone. The only exception to this rule is where the model remains unaltered after this date.
  2. Pre 78 Women’s class: acceptable machines and components are up to and including the 1977 model year. The only exception to this rule is where the model remains unaltered after this date.
16.15.11.2 Front wheel travel will not exceed 229mm (9 inches) rear wheel travel will be limited to 229mm (9 inches) measured at the axle. Rear shock absorbers will be in the original position using the original mounting points.
16.15.11.3 Engines and gearboxes must remain externally unchanged.
16.15.11.4 Carburettors; any type of pre 78 round slide may be used.
16.15.11.5 Exhaust may be modified but must follow the original lines and meet All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.11.6 Folding footrests must be fitted.
16.15.11.7 Countershaft sprocket covers will be fitted.
16.15.11.8 Acceptable follow on models pre 78

  1. CZ 125 1978, CZ400 1978,
  2. Montesa VB (must comply to suspension limits),
  3. Yamaha TT500 1978.

16.15.12 Acceptable machines and components: Evolution Class Solo

16.15.12.1 Bikes will be OEM (original equipment manufacturer).
16.15.12.2 Modifications converting later equipment to comply will not be allowed.
16.15.12.3 All components will be of the period the machine was manufactured:

  1. No linkage suspension,
  2. No disk brakes,
  3. Air cooled motors.
16.15.12.4 Carburettors; period flat slide carburettors and any round slide carburettor may be used.
16.15.12.5 Engines and gearboxes must remain externally unchanged.
16.15.12.6 Exhaust may be modified but must follow the original lines and be fitted with an effective muffler. All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.12.7 Folding footrests must be fitted.
16.15.12.8 Countershaft sprocket covers will be fitted.
16.15.12.9 The handlebars must be equipped with a protection pad on the cross bar. Handlebars not fitted with a cross bar must be equipped with a protection pad located in the middle of the handlebars covering the handlebar clamps.

16.15.13 Acceptable machines and components: Pre 85 Solo

16.15.13.1 Acceptable for the pre 85 class are machines and components built up to and including the 1984 model. The only exception to this rule is where the model remains unaltered after this date.
16.15.13.2 Carburettors; period flat slide carburettors and any round slide carburettor may be used.
16.15.13.3 Engines and gearboxes must remain externally unchanged.
16.15.13.4 Exhaust may be modified but must follow the original lines and be fitted with an effective muffler. All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.13.5 Folding footrests must be fitted.
16.15.13.6 Countershaft sprocket covers will be fitted.
16.15.13.7 The handlebars must be equipped with a protection pad on the cross bar. Handlebars not fitted with a cross bar must be equipped with a protection pad located in the middle of the handlebars covering the handlebar clamps.

16.15.14 Acceptable machines and components: Pre 90 Solo

16.15.14.1 Acceptable for the pre 90 class are machines and components built up to and including the 1989 model. The only exception to this rule is where the model remains unaltered after this date.
16.15.14.2 Carburettors; period flat slide carburettors and any round slide carburettor may be used.
16.15.14.3 Engines and gearboxes must remain externally unchanged.
16.15.14.4 Exhaust may be modified but must follow the original lines and be fitted with an effective muffler. All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.14.5 Folding footrests must be fitted.
16.15.14.6 Countershaft sprocket covers will be fitted.
16.15.14.7 The handlebars must be equipped with a protection pad on the cross bar. Handlebars not fitted with a cross bar must be equipped with a protection pad located in the middle of the handlebars covering the handlebar clamps.

16.16 SLIDERS

16.16.1 Slider Frames

16.16.1.1 The frame must:

  1. Have a conventional swing arm rear suspension with twin shock absorbers,
  2. Have a front wheel diameter of 23″,
  3. Have a rear wheel diameter of 19″,
  4. Have rear tyres with a maximum tread pattern depth of 8mm,
  5. Not be fitted with leading-link front forks. Leading-link front forks are prohibited in Classic classes,
  6. Period leading-link forks are permitted in Post Classic classes.

16.16.2 Slider Solo Engines

16.16.2.1 The slider engine must engines for the Classic Slider classes must be a period four stroke with:

  1. When four stroke be Single cylinder with 2- valve push rod operation,
  2. Have a single spark plug,
  3. Be vertical in the chassis,
  4. Be fitted with a round slide carburettor, or
  5. Be a period two-stroke compatible with class entered.
16.16.2.2 The engines for the Post Classic Slider classes must be a period four stroke with:

  1. Single cylinder,
  2. Have a single spark plug,
  3. Be vertical in the chassis,
  4. Be fitted with a carburetor available during the Pre 90 period, or
  5. Be a period two-stroke compatible with class entered.

16.16.3 Slider Gearbox: Classic Long Track

16.16.3.1 The gearbox must have at least two gears.

16.16.4 Slider Frames

16.16.4.1 Conventional type frames as used prior to 31st December 1976 must be used.

16.16.5 Slider Engines

16.16.5.1 Engines must have been manufactured before 31st December 1976.

16.17 SIDECARS

16.17.1 All Classes

16.17.1.1 Left -hand and right -hand sidecars may compete against each other in Classic Motocross.

16.17.2 Frames and Parts

16.17.2.1 For the Pre-1975 classes, all performance parts except frames must be manufactured before 31st December 1974 and must comply with the following:

  1. Wheel track measurement, taken between the longitudinal centres of the rear and sidecar wheels must be between 810mm and 1100mm,
  2. The minimum ground clearance must be 175mm unladen,
  3. The maximum lean of the motorcycle at saddle height must be 50mm,
  4. The dimensions of the sidecar baseboard in plain view, taken from a line drawn no further rearwards than the lowest point of the front down-tube to the forward most point of the sidecar wheel tyre and terminating no further rearwards than a line drawn at right angles to the machine from the rearmost point of the rear tyre, must be:
    1. At least 760mm long adjacent to the sidecar wheel,
    2. At least 300mm wide with at least 25mm radius to all corners.
  5. There must be no more than 50mm between baseboard and motorcycle and between baseboard and sidecar wheel. The baseboard must be arranged so as not to allow the passenger’s feet to be trapped,
  6. There must be no less than 4 sidecar attachment points,
  7. Stirrup fitting for the passenger’s feet are not permitted,
  8. Handholds:
  9. Must be finished with a loop of at least 100mm,
    1. Must not project beyond a line taken with the outer edge of the sidecar mudguard or bodywork,
    2. Adjacent to the nose section of the sidecar and less than 200mm from the track surface must be at an angle of at least 45° from the horizontal.
    3. The rear end of the rear wheel mudguard must terminate not more than 65° above a horizontal line drawn through the rear wheel axle and be valanced to baseboard level on the inside,
  10. The sidecar mudguard must cover at least 135° of the periphery of the wheel and be valanced to baseboard level on the inside,
  11. No machine may be fitted with scoop or paddle tyres,
  12. Suspension travel must not exceed:
    1. 178mm (7″) measured at the front axle,
    2. 102mm (4″) at the rear axle.
  13. Rear tyre width must not exceed 135mm (5.3″),
  14. Brakes:
    1. Front – single caliper, single disc may be fitted provided they were manufactured before 31st December 1974,
    2. Rear – rear disc brakes may be used provided they were fitted as standard equipment for that particular combination.
  15. Only round-slide carburettors manufactured within the relevant period may be used,
  16. Engine capacity must be up to 1300cc.
16.17.2.2 Pre-1985 is for sidecars constructed with motors manufactured before 31st December 1984.
16.17.2.3 A lanyard operated ignition cut-out switch, operating on the primary circuit, must be fitted to the following with a maximum length of one metre:

DISCIPLINE

MACHINE

Motocross Sidecars
Dirt track Sidecars
16.17.2.4 Pre-1968 will be for sidecars constructed from road going frames and all major components are those commercially available within the period.
16.17.2.5 The following table sets out the machines and components which eligibility scrutineers may use as a guide in determining eligibility. Entrants must prove eligibility of machines not listed below.

MAKE

MODEL(S)

Wasp All up to and including RT2, RT8 and RT14
Hagon All up to 31st December 1974
Yamaha XS 650 all models
Honda Any K series
Norton All 750, 850 to Mk2 only
Westlake All up to 850cc and 31st December 1974
Triumph All up to T150
CCM All BSA B50 based models

SECTION 16 D TECHNICAL REGULATIONS


16.11 MACHINE ELIGIBILITY

16.11.1 Eligible Machines

16.11.1.1 Only machines conforming to the requirements set out in this chapter will be accepted for competition.
16.11.1.2 The onus of proof of eligibility shall rest wholly upon the rider or entrant of the machine. Service and parts manual publication dates are not proof of eligibility.

16.12 SOUND EMISSIONS

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

16.12.1 Specifications

16.12.1.1 Sound emissions are set out in the table below:

30 metres (from side of track) ride by test

DISCIPLINE LIMIT dB(A)
Classic/Post Classic Motocross and

Classic/Post Classic
Dirt Track & Track (incl. Quads)
95
Record Attempts No limit

16.12.2 Sound Control during Competition

16.12.2.1 The Sound Control Officer (SCO) must arrive in sufficient time for discussions with the Clerk of the Course and other Technical Officials in order that a suitable test site and testing policy can be agreed.
16.12.2.2 Machines can be tested before, or after competing in an event, chosen by ballot, or as required by a Steward, Clerk of Course or SCO.
16.12.2.3 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 General Competition Rule 16.12.1.1.

16.12.3 Use of Sound Level Meters

16.12.3.1 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.
16.12.3.2 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,
16.12.3.3 ’30 Metre ride by’ test

  1. The sound levels will be measured with the sound meter/microphone fixed on a tripod, in the horizontal position, 30 metres from the edge of the track at a high speed point.
16.12.3.4 Tests shall not take place in the rain

16.12.4 Machine testing

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

16.13 FUEL

16.13.1 Fuel Warning

16.13.1.1 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.
16.13.1.2 Some of the components of fuel and lubricants are suspected of having the potential to cause cancer in rare circumstances.
16.13.1.3 The use of petrol as a general cleaning and washing agent is a common misuse of a potentially dangerous substance.
16.13.1.4 Fuels should be used and stored with extreme care and in accordance with the manufacturer’s instructions.

16.13.2 Fuel Testing

16.13.2.1 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 Clerk of Course, Race Director or Chief Scrutineer may direct the administration of fuel tests.
16.13.2.2 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.

16.13.3 Refuelling

16.13.3.1 During refuelling, each machine must be stationary with the engine stopped.
16.13.3.2 Refuelling will be deemed to have commenced when the fuel tank has been opened and completed when the tank is closed.
16.13.3.3 Smoking is strictly prohibited in areas where refuelling is permitted.
16.13.3.4 Riders are liable for exclusion from an event for failing to adhere to General Competition Rule 16.13.3.3, and are responsible for the actions of their mechanics and support team members.

16.13.4 Homologation of Fuel

16.13.4.1 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.
16.13.4.2 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.
16.13.4.3 Fuels approved under this General Competition Rule will be published at www.ma.org.au.

16.13.5 Fuel: Classic Motocross and Classic Dirt Track

Classic Motocross and Classic Dirt Track fuel used for competition must be:

  1. Pure methanol with no additives other than lubricating oil, or,
  2. Unleaded fuel that is no more than 100 RON and meets rule 16.13.4.1,
  3. Which contains no additives other than those added at the point of manufacture except for lubricating oil, or,
  4. Be a brand of fuel homologated by MA that is compatible with the “Fuel Quality Standards Act 2000”, or,
  5. Leaded fuel provided that the fuel is purchased from suppliers approved by Environmental Australia.

16.14 ENGINES: GENERAL

16.14.1 Reciprocating Engines

16.14.1.1 The formula 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.

16.14.2 Engine capacity tolerances

16.14.2.1 The actual engine capacity of a machine competing in a capacity class may not exceed the prescribed capacity for that class by more than 5%.

16.15 MACHINES AND COMPONENTS

16.15.1 Centre and Side Stands

16.15.1.1 Centre and side stands must be removed for all types of competition

16.15.2 Handlebars

16.15.2.1 The ends of the handlebars or twist grip sleeves must be securely plugged so as to present a flush or rounded end.
16.15.2.2 Handlebar levers must:

  1. Have ball ends with a minimum diameter of:
    1. 15mm, for levers longer than 76mm,
    2. 10mm, for levers shorter than 76mm.
  2. Measure no more than 200mm from the fulcrum to the extremity of the ball.
16.15.2.3 Throttle controls must be self-closing.

16.15.3 Kick Start Levers

16.15.3.1 Kick start levers, other than transverse, must be folding.

16.15.4 Drive Chain Protection

16.15.4.1 Primary drives (the drive connecting engine to clutch) must be guarded so as to prevent direct access to the chain or sprockets with the fingers.
16.15.4.2 The guard must be constructed of:

  1. Metal having a minimum thickness of 1.6mm, which may be mesh or expanded metal provided the openings do not exceed 10mm, or
  2. Fibreglass having a minimum thickness of 3mm.
16.15.4.3 If a plastic, fibreglass or part open chain guard is used, a steel bolt of not less than 10mm diameter, placed outside the bottom rear quadrant of the clutch sprocket. This bolt, if damaged, must be replaced.
16.15.4.4 Projecting sprockets, which are not behind a clutch assembly or directly behind a frame member, must be guarded where the sprocket teeth are further than 30mm from a frame member or swinging arm.
16.15.4.5 A counter shaft sprocket which is more than 30mm from the outside of the swing arm pivot must be covered.
16.15.4.6 A chain guard made of suitable material must be fitted in a way to prevent trapping between the lower drive chain run and the final drive sprocket at the rear wheel.

16.15.5 Tyres

16.15.5.1 Tyres must comply with the following:

  1. Metal studs, spikes, chain, rope or other non-skid attachments may not be used unless permitted by the relevant Supplementary Regulations.
  2. Paddle or scoop treaded tyres may not be fitted.
16.15.5.2 Valve caps must be used for all competitions.

16.15.6 Mudguards

16.15.6.1 Either a rear mudguard or a seat must be fitted which extends at least 20 degrees to the rear of a vertical line drawn through the rear wheel axle.
16.15.6.2 Mudguards must be made of a material, which is not liable to cause personal injury if deformed.

16.15.7 Acceptable machines and components: Pre 60 Solo

16.15.7.1 Acceptable for the pre 60 class are machines and components built up to and including the 1959 model. The only exception to this General Competition Rule is where the model remains unaltered after this date.
16.15.7.2 Frames of any manufacture are acceptable within the suspension criteria and considerate of the era.
16.15.7.3 Front wheel travel will not exceed 178mm (7 inches) rear wheel travel will be limited to 102mm (4 inches) measured at the axle. Rear shock absorbers will be in the original position using the original mounting points.
16.15.7.4 Plastic and fibreglass is not permitted.
16.15.7.5 Engines and gearboxes must remain externally unchanged.
16.15.7.6 Period carburettors or Amal Mk1 Concentric.
16.15.7.7 Exhaust may be modified but must follow the original lines and meet All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.7.8 Folding footrests must be fitted.
16.15.7.9 Countershaft sprocket covers will be fitted.

16.15.8 Acceptable machines and components: Pre 65 Solo

16.15.8.1 Acceptable for the pre 65 class are machines and components built up to and including the 1964 model. The only exception to this rule is where the model remains unaltered after this date.
16.15.8.2 Frames of any manufacture are acceptable within the suspension criteria and considerate of the era.
16.15.8.3 Front wheel travel will not exceed 178mm (7 inches) rear wheel travel will be limited to 102mm (4 inches) measured at the axle.
16.15.8.4 Rear shock absorbers will be in the original position using the original mounting points.
16.15.8.5 Engines and gearboxes must remain externally unchanged.
16.15.8.6 Carburettors of any type pre 75 round slide may be used.
16.15.8.7 Exhaust may be modified but must follow the original lines and meet All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.8.8 Folding footrests must be fitted.
16.15.8.9 Countershaft sprocket covers will be fitted.

16.15.9 Acceptable machines and components: Pre 70 Solo

16.15.9.1 Acceptable for the pre 70 class are machines and components built up to and including the 1969 model. The only exception to this rule is where the model remains unaltered after this date.
16.15.9.2 Front wheel travel will not exceed 178mm (7 inches) rear wheel travel will be limited to 102mm (4 inches) measured at the axle. Rear shock absorbers will be in the original position using the original mounting points.
16.15.9.3 Engines and gearboxes must remain externally unchanged.
16.15.9.4 Carburettors; any type of pre 75 round slide may be used.
16.15.9.5 No reed valves permitted.
16.15.9.6 Exhaust may be modified but must follow the original lines and meet All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.9.7 Folding footrests must be fitted.
16.15.9.8 Countershaft sprocket covers will be fitted.
16.15.9.9 Yamaha XS1 and XS650 engines are eligible.
16.15.9.10 Acceptable follow on models pre 70

  1. AJS Stormer 250,
  2. Greeves griffon models,
  3. Yamaha AT1, DT1, CT1, RT1 pre reed block.

16.15.10 Acceptable machines and components: Pre 75 Solo

16.15.10.1 Acceptable for the pre 75 class are machines and components built up to and including the 1974 model. The only exception to this rule is where the model remains unaltered after this date.
16.15.10.2 Front wheel travel will not exceed 178mm (7 inches) rear wheel travel will be limited to 102mm (4 inches) measured at the axle. Rear shock absorbers will be in the original position using the original mounting points.
16.15.10.3 Engines and gearboxes must remain externally unchanged.
16.15.10.4 Carburettors; any type of pre 75 round slide may be used.
16.15.10.5 XS1 and XS650 engines are eligible.
16.15.10.6 Exhaust may be modified but must follow the original lines and meet All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.10.7 Folding footrests must be fitted.
16.15.10.8 Countershaft sprocket covers will be fitted.
16.15.10.9 Acceptable follow on models pre 75

  1. Honda CR125M1, XL250K1, XL350K1, MT250 and MT125,
  2. Yamaha YZ360B, DT250B,
  3. Suzuki TS400 (all).

16.15.11 Acceptable machines and components: Pre 78 Solo

16.15.11.1 Acceptable for the Pre 78 classes:

  1. Machines and components that are limited to the 1975, 1976, 1977 models alone. The only exception to this rule is where the model remains unaltered after this date.
  2. Pre 78 Women’s class: acceptable machines and components are up to and including the 1977 model year. The only exception to this rule is where the model remains unaltered after this date.
16.15.11.2 Front wheel travel will not exceed 229mm (9 inches) rear wheel travel will be limited to 229mm (9 inches) measured at the axle. Rear shock absorbers will be in the original position using the original mounting points.
16.15.11.3 Engines and gearboxes must remain externally unchanged.
16.15.11.4 Carburettors; any type of pre 78 round slide may be used.
16.15.11.5 Exhaust may be modified but must follow the original lines and meet All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.11.6 Folding footrests must be fitted.
16.15.11.7 Countershaft sprocket covers will be fitted.
16.15.11.8 Acceptable follow on models pre 78

  1. CZ 125 1978, CZ400 1978,
  2. Montesa VB (must comply to suspension limits),
  3. Yamaha TT500 1978.

16.15.12 Acceptable machines and components: Evolution Class Solo

16.15.12.1 Bikes will be OEM (original equipment manufacturer).
16.15.12.2 Modifications converting later equipment to comply will not be allowed.
16.15.12.3 All components will be of the period the machine was manufactured:

  1. No linkage suspension,
  2. No disk brakes,
  3. Air cooled motors.
16.15.12.4 Carburettors; period flat slide carburettors and any round slide carburettor may be used.
16.15.12.5 Engines and gearboxes must remain externally unchanged.
16.15.12.6 Exhaust may be modified but must follow the original lines and be fitted with an effective muffler. All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.12.7 Folding footrests must be fitted.
16.15.12.8 Countershaft sprocket covers will be fitted.
16.15.12.9 The handlebars must be equipped with a protection pad on the cross bar. Handlebars not fitted with a cross bar must be equipped with a protection pad located in the middle of the handlebars covering the handlebar clamps.

16.15.13 Acceptable machines and components: Pre 85 Solo

16.15.13.1 Acceptable for the pre 85 class are machines and components built up to and including the 1984 model. The only exception to this rule is where the model remains unaltered after this date.
16.15.13.2 Carburettors; period flat slide carburettors and any round slide carburettor may be used.
16.15.13.3 Engines and gearboxes must remain externally unchanged.
16.15.13.4 Exhaust may be modified but must follow the original lines and be fitted with an effective muffler. All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.13.5 Folding footrests must be fitted.
16.15.13.6 Countershaft sprocket covers will be fitted.
16.15.13.7 The handlebars must be equipped with a protection pad on the cross bar. Handlebars not fitted with a cross bar must be equipped with a protection pad located in the middle of the handlebars covering the handlebar clamps.

16.15.14 Acceptable machines and components: Pre 90 Solo

16.15.14.1 Acceptable for the pre 90 class are machines and components built up to and including the 1989 model. The only exception to this rule is where the model remains unaltered after this date.
16.15.14.2 Carburettors; period flat slide carburettors and any round slide carburettor may be used.
16.15.14.3 Engines and gearboxes must remain externally unchanged.
16.15.14.4 Exhaust may be modified but must follow the original lines and be fitted with an effective muffler. All machines will be fitted with an effective muffler and comply with sound control regulations in GCR 16.12.
16.15.14.5 Folding footrests must be fitted.
16.15.14.6 Countershaft sprocket covers will be fitted.
16.15.14.7 The handlebars must be equipped with a protection pad on the cross bar. Handlebars not fitted with a cross bar must be equipped with a protection pad located in the middle of the handlebars covering the handlebar clamps.

16.16 SLIDERS

16.16.1 Slider Frames

16.16.1.1 The frame must:

  1. Have a conventional swing arm rear suspension with twin shock absorbers,
  2. Have a front wheel diameter of 23″,
  3. Have a rear wheel diameter of 19″,
  4. Have rear tyres with a maximum tread pattern depth of 8mm,
  5. Not be fitted with leading-link front forks. Leading-link front forks are prohibited in Classic classes,
  6. Period leading-link forks are permitted in Post Classic classes.

16.16.2 Slider Solo Engines

16.16.2.1 The slider engine must engines for the Classic Slider classes must be a period four stroke with:

  1. When four stroke be Single cylinder with 2- valve push rod operation,
  2. Have a single spark plug,
  3. Be vertical in the chassis,
  4. Be fitted with a round slide carburettor, or
  5. Be a period two-stroke compatible with class entered.
16.16.2.2 The engines for the Post Classic Slider classes must be a period four stroke with:

  1. Single cylinder,
  2. Have a single spark plug,
  3. Be vertical in the chassis,
  4. Be fitted with a carburetor available during the Pre 90 period, or
  5. Be a period two-stroke compatible with class entered.

16.16.3 Slider Gearbox: Classic Long Track

16.16.3.1 The gearbox must have at least two gears.

16.16.4 Slider Frames

16.16.4.1 Conventional type frames as used prior to 31st December 1976 must be used.

16.16.5 Slider Engines

16.16.5.1 Engines must have been manufactured before 31st December 1976.

16.17 SIDECARS

16.17.1 All Classes

16.17.1.1 Left -hand and right -hand sidecars may compete against each other in Classic Motocross.

16.17.2 Frames and Parts

16.17.2.1 For the Pre-1975 classes, all performance parts except frames must be manufactured before 31st December 1974 and must comply with the following:

  1. Wheel track measurement, taken between the longitudinal centres of the rear and sidecar wheels must be between 810mm and 1100mm,
  2. The minimum ground clearance must be 175mm unladen,
  3. The maximum lean of the motorcycle at saddle height must be 50mm,
  4. The dimensions of the sidecar baseboard in plain view, taken from a line drawn no further rearwards than the lowest point of the front down-tube to the forward most point of the sidecar wheel tyre and terminating no further rearwards than a line drawn at right angles to the machine from the rearmost point of the rear tyre, must be:
    1. At least 760mm long adjacent to the sidecar wheel,
    2. At least 300mm wide with at least 25mm radius to all corners.
  5. There must be no more than 50mm between baseboard and motorcycle and between baseboard and sidecar wheel. The baseboard must be arranged so as not to allow the passenger’s feet to be trapped,
  6. There must be no less than 4 sidecar attachment points,
  7. Stirrup fitting for the passenger’s feet are not permitted,
  8. Handholds:
  9. Must be finished with a loop of at least 100mm,
    1. Must not project beyond a line taken with the outer edge of the sidecar mudguard or bodywork,
    2. Adjacent to the nose section of the sidecar and less than 200mm from the track surface must be at an angle of at least 45° from the horizontal.
    3. The rear end of the rear wheel mudguard must terminate not more than 65° above a horizontal line drawn through the rear wheel axle and be valanced to baseboard level on the inside,
  10. The sidecar mudguard must cover at least 135° of the periphery of the wheel and be valanced to baseboard level on the inside,
  11. No machine may be fitted with scoop or paddle tyres,
  12. Suspension travel must not exceed:
    1. 178mm (7″) measured at the front axle,
    2. 102mm (4″) at the rear axle.
  13. Rear tyre width must not exceed 135mm (5.3″),
  14. Brakes:
    1. Front – single caliper, single disc may be fitted provided they were manufactured before 31st December 1974,
    2. Rear – rear disc brakes may be used provided they were fitted as standard equipment for that particular combination.
  15. Only round-slide carburettors manufactured within the relevant period may be used,
  16. Engine capacity must be up to 1300cc.
16.17.2.2 Pre-1985 is for sidecars constructed with motors manufactured before 31st December 1984.
16.17.2.3 A lanyard operated ignition cut-out switch, operating on the primary circuit, must be fitted to the following with a maximum length of one metre:

DISCIPLINE

MACHINE

Motocross Sidecars
Dirt track Sidecars
16.17.2.4 Pre-1968 will be for sidecars constructed from road going frames and all major components are those commercially available within the period.
16.17.2.5 The following table sets out the machines and components which eligibility scrutineers may use as a guide in determining eligibility. Entrants must prove eligibility of machines not listed below.

MAKE

MODEL(S)

Wasp All up to and including RT2, RT8 and RT14
Hagon All up to 31st December 1974
Yamaha XS 650 all models
Honda Any K series
Norton All 750, 850 to Mk2 only
Westlake All up to 850cc and 31st December 1974
Triumph All up to T150
CCM All BSA B50 based models