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 24C: TECHNICAL REGULATIONS


24.9 SOUND EMISSIONS

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

24.9.1 Specifications

24.9.1.1 Sound emissions are set out in the tables below:

2 Metre Max method

DISCIPLINE LIMIT dB(A)
Minikhana 112 with a 4dB(A) allowance
24.9.1.2 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 24.9.1.1.

24.9.2 Use of Sound Level Meters

24.9.2.1 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.
24.9.2.2 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,
24.9.2.3 ‘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, for example, 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.
24.9.2.4 ‘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.
24.9.2.5 ‘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 two 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).
24.9.2.6 Tests shall not take place in the rain

24.9.3 Machine Testing

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

24.9.4 Sound Control during Competition

24.9.4.1 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.
24.9.4.2 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.

24.10 FUEL

24.10.1 Fuel Warning

24.10.1.1 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.
24.10.1.2 Some of the components of fuel and lubricants are suspected of having the potential to cause cancer in rare circumstances.
24.10.1.3 The use of petrol as a general cleaning and washing agent is a common misuse of a potentially dangerous substance.
24.10.1.4 Fuels should be used and stored with extreme care and in accordance with the manufacturer’s instructions.

24.10.2 Refueling

24.10.2.1 During refueling, each machine must be stationary with the engine stopped.
24.10.2.2 Refueling will be deemed to have commenced when the fuel tank has been opened and completed when the tank is closed.
24.10.2.3 Smoking is strictly prohibited in areas where refueling is permitted.
24.10.2.4 Riders are liable for exclusion from an event for failing to adhere to GCR 24.10.2.3, and are responsible for the actions of their mechanics and support team members.

24.11 ENGINES, FRAMES AND PARTS

24.11.0.1 All machines must remain standard with the manufacturer’s specifications with the exception of:

  1. Exhaust system,
  2. Gearing,
  3. Carburettor jetting,
  4. Plastics,
  5. Handlebars,
  6. Rear shock absorber(s).
24.11.0.2 Efficient brakes must be fitted as per manufacturer’s specifications.
24.11.0.3 When the brake arm or lever is of the open or hooked type, the brake actuating rod or cable must be secured so as to prevent accidental dislodgment.
24.11.0.4 An ignition cut out switch, operating on the primary circuit must be fitted to the handlebars in an accessible position.
24.11.0.5 Handlebar pads must be fitted over crossbar or handlebar mounting clamp.
24.11.0.6 Handlebar ends must be securely plugged.
24.11.0.7 Handlebar lever protectors, where fitted, must be single mounted.
24.11.0.8 All glass and plastic lenses shall be either removed or covered with a fabric backed tape.
24.11.0.9 Front and rear mudguards to be fitted.
24.11.0.10 Wheel sizes:

CLASS

FRONT

REAR

Miniwheel 14″ 12″
Standard Wheel 17″ 14″
Big Wheel 19″ 16″

24.11.1 Engines

24.11.1.1 The maximum capacity of any engine in Minikhana is 100cc 2-stroke or 150cc 4-stroke.

24.11.2 50cc Demo Class Machines

24.11.2.1 Eligible Machines are:

MANUFACTURER

MODEL(s)

FMC PY50, XRX50EY
Honda CRF50, QR50
HM Baja Junior
Husqvarna Husky Boy Junior
Kawasaki KDX50
Kazuma Tiger Cat 50
KTM Mini Adventure, 50ADV Senior, 50SX Mini, 50SX Junior 2008, 50SX Mini 2009
LEM LX1, CX2, LXR50, RX2-AIR, RX2
Suzuki JR50
TM 50C1
Yamaha PW50, TT-R50E

and similarly specified machines as approved by the Board may be used.

24.11.2.1 Machine Requirements:

  1. Engine capacity must not exceed 50cc,
  2. The gearbox for 2-stroke machines must have one gear,
  3. The gearbox for 4-stroke machines may have up to three gears,
  4. Standard gear ratios must be retained,
  5. The clutch must be of centrifugal type, and of OEM type,
  6. Wheels as per GCR 15.24.2 must be fitted,
  7. The appearance of a machine must remain as manufactured provided that the following may be altered All machines must remain standard to the OEM specifications for the model. Only the following items may be modified:
    1. Colour,
    2. Seat,
    3. Mudguards,
    4. Handlebars,
    5. Grips,
    6. Levers,
    7. Cables,
    8. Chains,
    9. Tyre brand and tread pattern,
    10. Carburettor jets,
    11. Spark Plug.
  8. The frame of a machine may be gusseted and strengthened but not so as to alter the geometry of the frame. A certificate issued by a qualified engineer in respect of any such gusseting and strengthening must be available at machine examination,
  9. The restricting washer in the exhaust header pipe abutting the cylinder barrel may be removed,
  10. Throttle limiting devices may be removed,
  11. A separate kill switch may be installed in place of the standard,
  12. Steel serrated foot pegs may replace standard rubber pegs,
  13. Handlebars must be securely plugged and be no wider than 630mm,
  14. Engine, Carburettor, Fuel system, Exhaust System, Electrics & Air Box must remain as per manufacturers specifications,
  15. Carburettor size must not exceed 14mm.

24.11.3 50cc Auto Class Machines

24.11.3.1 Eligible Machines are (for all Open events):

MANUFACTURER

MODEL(s)

Cobra King CX50
Gas Gas EC 50
HM CRX 10/10 Senior, Baja 10/10, X3R
Husqvarna Husky Boy SF03, CR50
Italjet Action Outlaw
KTM SXR PRO SNR, 50SX, SXR PRO JNR, 50 SX 2009
LEM RX3, RX3 2008, LX2F-USA, CR2, CR2S
Malagutti RCX10
Polini XR3
TM 50 C1
Metrakit MKX50

and similarly specified machines as approved by the Board may be used.

24.11.3.2 Machine Requirements:

  1. Engine capacity must not exceed 50cc,
  2. The gearbox must have one gear,
  3. External gearing may be altered,
  4. The clutch must be of centrifugal type, and of OEM type,
  5. Wheels as per GCR 15.24.2 must be fitted,
  6. The appearance of a machine must remain as manufactured provided that the following may be altered All machines must remain standard to the OEM specifications for the model. Only the following items may be modified:
    1. Colour,
    2. Seat,
    3. Mudguards,
    4. Handlebars,
    5. Grips,
    6. Levers,
    7. Cables,
    8. Chains,
    9. Tyre brand and tread pattern,
    10. Carburettor jets
  7. The frame of a machine may be gusseted and strengthened but not so as to alter the geometry of the frame. A certificate issued by a qualified engineer in respect of any such gusseting and strengthening must be available at machine examination,
  8. Throttle limiting devices may be removed,
  9. A separate kill switch may be installed in place of the standard,
  10. Steel serrated foot pegs may replace standard rubber pegs,
  11. Handlebars must be securely plugged. and be no wider than 630mm or OEM for the model, The width of handlebars must be not less than 600mm and not more than 850mm.
  12. Aftermarket exhaust systems and silencers are permitted.

SECTION 24C: TECHNICAL REGULATIONS


24.9 SOUND EMISSIONS

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

24.9.1 Specifications

24.9.1.1 Sound emissions are set out in the tables below:

2 Metre Max method

DISCIPLINE LIMIT dB(A)
Minikhana 112 with a 4dB(A) allowance
24.9.1.2 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 24.9.1.1.

24.9.2 Use of Sound Level Meters

24.9.2.1 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.
24.9.2.2 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,
24.9.2.3 ‘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, for example, 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.
24.9.2.4 ‘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.
24.9.2.5 ‘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 two 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).
24.9.2.6 Tests shall not take place in the rain

24.9.3 Machine Testing

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

24.9.4 Sound Control during Competition

24.9.4.1 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.
24.9.4.2 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.

24.10 FUEL

24.10.1 Fuel Warning

24.10.1.1 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.
24.10.1.2 Some of the components of fuel and lubricants are suspected of having the potential to cause cancer in rare circumstances.
24.10.1.3 The use of petrol as a general cleaning and washing agent is a common misuse of a potentially dangerous substance.
24.10.1.4 Fuels should be used and stored with extreme care and in accordance with the manufacturer’s instructions.

24.10.2 Refueling

24.10.2.1 During refueling, each machine must be stationary with the engine stopped.
24.10.2.2 Refueling will be deemed to have commenced when the fuel tank has been opened and completed when the tank is closed.
24.10.2.3 Smoking is strictly prohibited in areas where refueling is permitted.
24.10.2.4 Riders are liable for exclusion from an event for failing to adhere to GCR 24.10.2.3, and are responsible for the actions of their mechanics and support team members.

24.11 ENGINES, FRAMES AND PARTS

24.11.0.1 All machines must remain standard with the manufacturer’s specifications with the exception of:

  1. Exhaust system,
  2. Gearing,
  3. Carburettor jetting,
  4. Plastics,
  5. Handlebars,
  6. Rear shock absorber(s).
24.11.0.2 Efficient brakes must be fitted as per manufacturer’s specifications.
24.11.0.3 When the brake arm or lever is of the open or hooked type, the brake actuating rod or cable must be secured so as to prevent accidental dislodgment.
24.11.0.4 An ignition cut out switch, operating on the primary circuit must be fitted to the handlebars in an accessible position.
24.11.0.5 Handlebar pads must be fitted over crossbar or handlebar mounting clamp.
24.11.0.6 Handlebar ends must be securely plugged.
24.11.0.7 Handlebar lever protectors, where fitted, must be single mounted.
24.11.0.8 All glass and plastic lenses shall be either removed or covered with a fabric backed tape.
24.11.0.9 Front and rear mudguards to be fitted.
24.11.0.10 Wheel sizes:

CLASS

FRONT

REAR

Miniwheel 14″ 12″
Standard Wheel 17″ 14″
Big Wheel 19″ 16″

24.11.1 Engines

24.11.1.1 The maximum capacity of any engine in Minikhana is 100cc 2-stroke or 150cc 4-stroke.

24.11.2 50cc Demo Class Machines

24.11.2.1 Eligible Machines are:

MANUFACTURER

MODEL(s)

FMC PY50, XRX50EY
Honda CRF50, QR50
HM Baja Junior
Husqvarna Husky Boy Junior
Kawasaki KDX50
Kazuma Tiger Cat 50
KTM Mini Adventure, 50ADV Senior, 50SX Mini, 50SX Junior 2008, 50SX Mini 2009
LEM LX1, CX2, LXR50, RX2-AIR, RX2
Suzuki JR50
TM 50C1
Yamaha PW50, TT-R50E

and similarly specified machines as approved by the Board may be used.

24.11.2.1 Machine Requirements:

  1. Engine capacity must not exceed 50cc,
  2. The gearbox for 2-stroke machines must have one gear,
  3. The gearbox for 4-stroke machines may have up to three gears,
  4. Standard gear ratios must be retained,
  5. The clutch must be of centrifugal type, and of OEM type,
  6. Wheels as per GCR 15.24.2 must be fitted,
  7. The appearance of a machine must remain as manufactured provided that the following may be altered All machines must remain standard to the OEM specifications for the model. Only the following items may be modified:
    1. Colour,
    2. Seat,
    3. Mudguards,
    4. Handlebars,
    5. Grips,
    6. Levers,
    7. Cables,
    8. Chains,
    9. Tyre brand and tread pattern,
    10. Carburettor jets,
    11. Spark Plug.
  8. The frame of a machine may be gusseted and strengthened but not so as to alter the geometry of the frame. A certificate issued by a qualified engineer in respect of any such gusseting and strengthening must be available at machine examination,
  9. The restricting washer in the exhaust header pipe abutting the cylinder barrel may be removed,
  10. Throttle limiting devices may be removed,
  11. A separate kill switch may be installed in place of the standard,
  12. Steel serrated foot pegs may replace standard rubber pegs,
  13. Handlebars must be securely plugged and be no wider than 630mm,
  14. Engine, Carburettor, Fuel system, Exhaust System, Electrics & Air Box must remain as per manufacturers specifications,
  15. Carburettor size must not exceed 14mm.

24.11.3 50cc Auto Class Machines

24.11.3.1 Eligible Machines are (for all Open events):

MANUFACTURER

MODEL(s)

Cobra King CX50
Gas Gas EC 50
HM CRX 10/10 Senior, Baja 10/10, X3R
Husqvarna Husky Boy SF03, CR50
Italjet Action Outlaw
KTM SXR PRO SNR, 50SX, SXR PRO JNR, 50 SX 2009
LEM RX3, RX3 2008, LX2F-USA, CR2, CR2S
Malagutti RCX10
Polini XR3
TM 50 C1
Metrakit MKX50

and similarly specified machines as approved by the Board may be used.

24.11.3.2 Machine Requirements:

  1. Engine capacity must not exceed 50cc,
  2. The gearbox must have one gear,
  3. External gearing may be altered,
  4. The clutch must be of centrifugal type, and of OEM type,
  5. Wheels as per GCR 15.24.2 must be fitted,
  6. The appearance of a machine must remain as manufactured provided that the following may be altered All machines must remain standard to the OEM specifications for the model. Only the following items may be modified:
    1. Colour,
    2. Seat,
    3. Mudguards,
    4. Handlebars,
    5. Grips,
    6. Levers,
    7. Cables,
    8. Chains,
    9. Tyre brand and tread pattern,
    10. Carburettor jets
  7. The frame of a machine may be gusseted and strengthened but not so as to alter the geometry of the frame. A certificate issued by a qualified engineer in respect of any such gusseting and strengthening must be available at machine examination,
  8. Throttle limiting devices may be removed,
  9. A separate kill switch may be installed in place of the standard,
  10. Steel serrated foot pegs may replace standard rubber pegs,
  11. Handlebars must be securely plugged. and be no wider than 630mm or OEM for the model, The width of handlebars must be not less than 600mm and not more than 850mm.
  12. Aftermarket exhaust systems and silencers are permitted.