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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 14E: TECHNICAL REGULATIONS: PERIOD


14.17 PERIOD 1 AND 2 SOLO

14.17.1 Requirements: Period 1 and 2

14.17.1.1 At least one efficient braking system and a primary drive guard if so driven;
14.17.1.2 Round or oval number plates.
14.17.1.3 Unless otherwise contained in the machine’s original specifications, wheel rim widths must not exceed WM3.
14.17.1.4 Major components that were manufactured outside a specific period but which are visually compatible with period components shall be eligible at the discretion of the Historic Road Race Commission.

14.17.2 Permitted uses: Period 1 and 2

14.17.2.1 Pure methanol fuel with no additives other than lubricating oil.
14.17.2.2 Amal GP, Monobloc and MK1 concentric to 35mm (1 ⅜ inch).
14.17.2.3 All period carburettors.

14.17.3 Prohibited uses: Period 1 and 2

14.17.3.1 Slick or grooved slick tyres.
14.17.3.2 Shock absorbers with remote or external reservoirs.

14.18 PERIOD 3 SOLO

14.18.1 Requirements: Period 3

14.18.1.1 Unless otherwise contained in the machine’s original specifications, wheel rim dimensions of a minimum of 18″ (457mm) diameter, and maximum WM3 width on all wheels.
14.18.1.2 Oval number plates.
14.18.1.3 Front and Rear Brakes: Any drum brake with a maximum internal diameter of 230mm.

14.18.2 Permitted uses: Period 3

14.18.2.1 Pure methanol fuel with no additives other than lubricating oil.
14.18.2.2 The following carburettors:

  1. All non-period Amal carburettors up to 40mm, or
  2. Dellorto SS1 and Dellorto concentric non-pumper carburettors up to 40mm,
  3. Keihin CR and PW round bore series carburettors up to a nominal 30mm,
  4. Mikuni VM round slide carburettors up to 40mm,
  5. Gardner Type C carburettors up to 40mm.
14.18.2.3 Diaphragm clutches, tooth belt drives and electronic ignition, provided they are concealed from view.
14.18.2.4 Triumph 8- and 9-stud cylinder heads.
14.18.2.5 Reinforced gearbox castings.
14.18.2.6 Cerani GP Forks or replicas thereof (e.g. Maxton).

14.18.3 Prohibited uses: Period 3

14.18.3.1 Direct crankcase induction other than rotary disc valve on 2 -strokes.
14.18.3.2 Reed valves on 2-strokes.
14.18.3.3 Non-motorcycle engines and transmissions.
14.18.3.4 Disc brakes.
14.18.3.5 Slick or grooved slick tyres.
14.18.3.6 Shock absorbers with remote or external reservoirs.

14.19 PERIOD 4 SOLO

14.19.1 Requirements: Period 4

14.19.1.1 Unless otherwise contained in the machine’s original specifications, wheel rim dimensions of a minimum of 18″ (457mm) diameter, and maximum WM4 width on all wheels.
14.19.1.2 Oval or rectangular number plates.
14.19.1.3 Reed valves and crank case induction on 2-stroke engines, but only if the engine of original manufacture was so fitted
14.19.1.4 All lateral covers/engine cases containing oil and which could be in contact with the ground during a crash, must be protected by a second cover made from composite materials, type carbon or Kevlar, or be fitted with heavy duty crash resistant end cases made from solid metal. Plates and/or bars from aluminium or steel are also permitted. All these devices must be designed to be resistant against sudden shocks and must be fixed properly and securely. Bonding alone is not a suitable method of mounting.
14.19.1.5 All high pressure oil lines to be secured by a pressure type fitting; worm drive clamps do not comply.

14.19.2 Permitted uses: Period 4

14.19.2.1 Mechanical fuel injection.
14.19.2.2 Pure methanol fuel with no additives other than lubricating oil.
14.19.2.3 Keihin CR Special round slide carburettors up to 33mm bore size.
14.19.2.4 Lockheed 4-fin brake calipers.

14.19.3 Prohibited uses: Period 4

14.19.3.1 Accessory air assisted front forks.
14.19.3.2 Electronic fuel injection.
14.19.3.3 All power jet carburettors and all other carburettors that are fitted with any form of auxiliary/primary jet mounted so as to feed into the air stream prior to the main carburettor body.
14.19.3.4 Mono-shock rear ends.
14.19.3.5 The following machines or their major components:

  1. Kawasaki 900Z1,
  2. Yamaha TZ,
  3. Yamaha RD.
14.19.3.6 Mag wheels (cast metal wheels).
14.19.3.7 Rear disc brakes, unless originally factory fitted.
14.19.3.8 Slick or grooved slick tyres.
14.19.3.9 Shock absorbers with remote or external reservoirs.

14.20 PERIOD 5 SOLO

14.20.1 Requirements: Period 5

14.20.1.1 Unless otherwise contained in the machine’s original specifications,

  1. For 125cc to 500cc machines, the wheel rim must have:
    1. A minimum diameter of 18″ (457mm), and
    2. A maximum width of 2.5″ (63.5mm) front and 4″ (101.6mm) rear.
  2. For Unlimited class, the wheel rim must have:
    1. Minimum diameters of 16″ (407mm) front and minimum of 17″ (432mm) rear, and
    2. A maximum width of 3.5″ (89 mm) front and 5″ (127mm) rear with maximum 180 section as moulded on the tyre.
14.20.1.2 Period forks:

  1. Forks of a type manufactured in the period up to a maximum diameter of 41mm,
  2. Forks which replicate the type manufactured in the period up to a maximum diameter of 41mm.
14.20.1.3 Rectangular number plates.
14.20.1.4 Front and rear brakes:

  1. Manufactured in the period, or
  2. Which replicate those manufactured in the period.
14.20.1.5 All lateral covers/engine cases containing oil and which could be in contact with the ground during a crash, must be protected by a second cover made from composite materials, type carbon or Kevlar , or be fitted with heavy duty crash resistant end cases made from solid metal. Plates and/or bars from aluminium or steel are also permitted. All these devices must be designed to be resistant against sudden shocks and must be fixed properly and securely. Bonding alone is not a suitable method of mounting.
14.20.1.6 All high pressure oil lines to be secured by a pressure type fitting; worm drive clamps do not comply.

14.20.2 Permitted uses: Period 5

14.20.2.1 The following machines or their major components:

  1. Kawasaki 900Z1,
  2. Yamaha TZ,
  3. Yamaha RD and LC.
14.20.2.2 Spoked and mag-type (cast metal) wheels.
14.20.2.3 Slick type racing tyres, cut slicks and racing wets.
14.20.2.4 The swingarm must be as manufactured or modified in accordance with modifications carried out in the period, or an aftermarket item available in the period, or a replica of an aftermarket item available in the period.

14.20.3 Prohibited uses: Period 5

14.20.3.1 Floating front and rear discs unless:

  1. Manufactured in the period, or
  2. Which replicate those manufactured in the period.
14.20.3.2 The following machines or their major and minor components:

  1. Yamaha TZ250H,
  2. Yamaha TZ250J,
  3. 1981 Suzuki RG 500,
  4. 1982 Suzuki RG 500.
14.20.3.3 Unless contained in the machine’s original specifications, all anti-dive devices and external fork damping.
14.20.3.4 Replica fork sliders, calipers and anti-dive devices must be visually indistinguishable from factory original.
14.20.3.5 Electronic fuel injection.
14.20.3.6 The use of carbon fibre and Kevlar materials, and other materials presented as having the appearance of carbon fibre, with the exception of Period 5 two-stroke exhaust systems only.

14.21 PERIOD 6 SOLO

14.21.1 Requirements: Period 6

14.21.1.1 Period forks:

  1. Conventional forks of a type manufactured in the period,
  2. Conventional forks which replicate the type manufactured in the period. See GCR 14.21.3.5 for exception.
14.21.1.2 Rectangular number plates.
14.21.1.3 Front and rear brakes:

  1. Manufactured in the period, or
  2. Which replicate those manufactured in the period.
14.21.1.4 All lateral covers/engine cases containing oil and which could be in contact with the ground during a crash, must be protected by a second cover made from composite materials, type carbon or Kevlar, or be fitted with heavy duty crash resistant end cases made from solid metal. Plates and/or bars from aluminium or steel are also permitted. All these devices must be designed to be resistant against sudden shocks and must be fixed properly and securely. Bonding alone is not a suitable method of mounting.
14.21.1.5 Formula 750/1300 Based Machines

To be eligible for a Formula class, machines shall be of a make and model that was generally available to the Australian public during the period as supplied by the original factory of manufacture for normal road use. It is expected that machines will not be altered significantly from the original specification; accordingly all modifications will need to be proven to be of the period.

The following items must remain standard to the original specification to comply with Formula classification:

  1. Frame (from steering head to rear of seat support) may be braced and brackets for road-going equipment may be removed. However the rear sub frame may be replaced with an aftermarket item or a rear sub frame or seat support may be manufactured,
  2. Petrol tank (fillers and taps may be removed/replaced. Fuel capacity may be reduced or enlarged as long as general appearance and dimensions are not changed),
  3. Engine castings,
  4. Position of the cylinders and heads relative to the crank case,
  5. Number of valves and ports in the engine on both the intake and exhaust side.
  6. Bodywork and seat changes for catch tray and provision of suitable area for numbering are allowed, internal fairing dam or catch tray must have a capacity of 2.5 litres for 2-strokes and 3 litres for 4-strokes.
14.21.1.6 All high pressure oil lines to be secured by a pressure type fitting, worm drive clamps do not comply.

14.21.2 Permitted uses: Period 6

14.21.2.1 Ride height adjuster including dog bones and linkages.
14.21.2.2 Steering damper.
14.21.2.3 Tyre choice is open, but wheels must be from or visually indistinguishable from models available in the period. Maximum rim width front = 3.5 inch, Maximum rim width rear = 6 inch.
14.21.2.4 Fuel tanks maybe changed or modified provided they appear visually compatible with period components.

14.21.3 Prohibited uses: Period 6

14.21.3.1 Radial brakes are prohibited.
14.21.3.2 Carbon fibre discs are prohibited.
14.21.3.3 Carbon fibre wheels are prohibited.
14.21.3.4 Replica fork sliders, calipers and anti-dive devices must be visually indistinguishable from factory original.
14.21.3.5 Inverted forks are excluded unless originally fitted to the motorcycle represented. Only original inverted forks may be used.
14.21.3.6 Superchargers and Turbochargers are prohibited unless originally fitted equipment.
14.21.3.7 Fuel injection where fuel is injected directly into the combustion chambers is not permitted. Manifold injection is allowed provided it is the original system supplied on the machine.
14.21.3.8 The following machines or their major components:

  1. Kawasaki ZXR 750 J
  2. Yamaha FZR 1000 RU
  3. Suzuki GSX-R1100 M
  4. Yamaha TZ250B V-twin

Machines that were released for the 1991 model year are excluded unless all major components remain unchanged, therefore fully satisfying GCR14.12.

14.21.3.9 Period 6 250 Production only: Slick or grooved slick tyres prohibited.
14.21.3.10 Period 6 Production

Open to all 2-stroke and 4-stroke production based road bikes. To be eligible for racing, the motorcycle must be a production model manufactured between 1983 – 1990. Period 6 Production machines must comply with Road Race GCR 13.16 and 13.17.
14.21.3.11 Period 6 250 Production machines.
The following items may be modified from the original equipment manufacturer (OEM):

  1. Bodywork may be replaced, provided the replacement bodywork provides a similar profile to the original equipment,
  2. External gearing and drive chain,
  3. Tyres must be manufactured for road use in all weather conditions (use of slicks or grooved slicks prohibited),
  4. Brake pads and brake hoses,
  5. Exhaust system, provided it is similar to OEM,
  6. Handlebars,
  7. Hand and foot controls,
  8. Front fork springs and internals,
  9. Rear shock and/or spring,
  10. Instrument cluster may be removed or replaced,
  11. Unnecessary brackets may be removed,

All other parts must remain as supplied by the manufacturer

14.22 SIDECARS AND CYCLECARS: GENERAL

14.22.0.1 Ground clearance of no less than 65mm for the whole of the underside of the machine (excluding wheels), measured with the machine handlebars in the straight ahead position, race ready with rider and passenger on board,
14.22.0.2 Left-hand and right-hand sidecars may compete against each other in Historic Road Racing.

14.23 PERIOD 1 AND 2 SIDECARS AND CYCLECARS

14.23.1 Requirements: Period 1 and 2

14.23.1.1 At least one efficient braking system and a primary drive guard if so driven.
14.23.1.2 Sidecars must:

  1. Use a frame of a type which could be ridden solo, with an outrigger sidecar chassis of tubular steel construction,
  2. Be bolted at a minimum of 4 points.
14.23.1.3 Wheel rim dimensions of a minimum of 18″ (457mm) diameter, and maximum WM4 width on all wheels.
14.23.1.4 Oval number plates.

14.24 PERIOD 3 SIDECARS AND CYCLECARS

14.24.1 Requirements: Period 3

14.24.1.1 The height to the top bearing of the steering head must be at least 710mm (28″) unladen.
14.24.1.2 Wheel rim diameters of at least:

  1. Front 16″ (406mm),
  2. Rear 13″ (330mm),
  3. Sidecar 10″ (254mm).
14.24.1.3 Wheel rim widths of no more than:

  1. Front 3″ (76mm),
  2. Rear 4.5″ (115mm),
  3. Sidecar 4″ (102mm).
14.24.1.4 Tyre outside diameters must be at least 22″ (560mm) front and rear.
14.24.1.5 Oval or rectangular number plates.
14.24.1.6 Front and rear Brakes:

  1. Any drum brake with a maximum internal diameter of 230mm or less,
  2. Sidecar wheel brake prohibited,
  3. Linking of brakes is prohibited,
  4. Front brakes are to be hand controlled and rear brakes are to be foot controlled.

14.24.2 Permitted uses: Period 3

14.24.2.1 Pure methanol fuel with no additives other than lubricating oil.
14.24.2.2 The following carburettors are allowed:

  1. All non-period Amal carburettors up to 40mm,
  2. Dellorto SSI and Dellorto concentric non-pumper carburettors up to 40mm,
  3. Keihin CR and PW round bore series carburettors up to a nominal 30mm,
  4. Mikuni VM round slide carburettors up to 40mm,
  5. Gardner Type C carburettors up to 40mm,
  6. All period carburettors.
14.24.2.3 Diaphragm clutches, tooth belt drives and electronic ignition, provided they are concealed from view.
14.24.2.4 Triumph 8 and 9-stud cylinder heads.
14.24.2.5 Non-motorcycle wheels and brakes providing they meet existing dimensional criteria.
14.24.2.6 Reinforced gearbox castings.

14.24.3 Prohibited uses: Period 3

14.24.3.1 Sidecar kneelers.
14.24.3.2 Non-motorcycle engines and transmissions, except where originally fitted.
14.24.3.3 Disc brakes.

14.25 PERIOD 4 SIDECARS AND CYCLECARS

14.25.1 Requirements: Period 4

14.25.1.1 Wheel rim diameters of be at least 10″ (254mm).
14.25.1.2 Wheel rim widths of no more than 6″ (153mm).
14.25.1.3 Moulded tread type tyres.
14.25.1.4 Front and rear brakes:

  1. Manufactured in the period,
  2. Which replicate those manufactured in the period,
  3. Sidecar brake permitted,
  4. Only mechanical brake bias adjustment permitted,
  5. Linking of front and rear brakes prohibited,
  6. Linking of rear and sidecar brakes permitted.
  7. Disc brakes manufactured in the period or are an exact replica of those manufactured in the period,
  8. Front brakes must be hand controlled. Rear and linked sidecar brakes must be foot controlled.
14.25.1.5 Front exit sidecar chassis configuration only.
14.25.1.6 Oval or rectangular number plates.

14.25.2 Permitted uses: Period 4

14.25.2.1 Pure methanol fuel with no additives other than lubricating oil.
14.25.2.2 Mechanical fuel injection.
14.25.2.3 Non-motorcycle wheels and brakes provided they meet existing dimensional criteria.
14.25.2.4 Hydraulic brake master cylinders of cylindrical appearance.
14.25.2.5 Keihin CR Special round slide carburettors up to 33mm bore size.
14.25.2.6 Lockheed four-fin brake calipers.

14.25.3 Prohibited uses: Period 4

14.25.3.1 The following machines or their major components:

  1. Kawasaki 900Z1,
  2. Yamaha TZ,
  3. Yamaha RD.
14.25.3.2 Electronic fuel injection.
14.25.3.3 Power jet carburettors.

14.26 PERIOD 5 SIDECARS AND CYCLECARS

14.26.1 Requirements: Period 5

14.26.1.1 Wheel rim diameters to be no greater 13″ (330mm).
14.26.1.2 Wheel rim widths to be no greater than:

  1. Front 7″ (178mm),
  2. Rear 9″ (229mm),
  3. Sidecar 8″ (203mm).
14.26.1.3 Rectangular number plates.
14.26.1.4 Front, rear and sidecar brakes:

  1. Manufactured in the period,
  2. Which replicate those manufactured in the period,
  3. Hydraulic bias adjusters permitted,
  4. Linking of brakes permitted,
  5. Must be fitted with an emergency system operated by a handlebar lever with a simple circuit operating on either front or rear of the motorcycle.
14.26.1.5 Front and/or rear sidecar exit configuration.
14.26.1.6 Steering / front forks:

  1. Leading or trailing forks, with front wheel equally supported on both sides,
  2. A cycle car with two forward wheels that was manufactured in the period or is an exact replica of those manufactured in the period.
14.26.1.7 Sidecars must use a frame of circular or non-circular tubular steel construction with a maximum diameter of 102mm (4″) at the broadest point, which was manufactured in the period or is a replica of a frame manufactured in the period.
14.26.1.8 Methanol Fuel

14.26.2 Permitted uses: Period 5

14.26.2.1 Slick type racing tyres, cut slicks and racing wets.
14.26.2.2 Motorcycle engines that were manufactured in the period.
14.26.2.3 Methanol fuel.

14.26.3 Prohibited uses: Period 5

14.26.3.1 Liquid cooled 4-stroke motorcycle engines.
14.26.3.2 Rear engine sidecars.
14.26.3.3 Steerable sidecar wheels.
14.26.3.4 Monocoque construction.
14.26.3.5 Banking sidecars.
14.26.3.6 Electronic fuel injection.
14.26.3.7 Floating front discs unless:

  1. Manufactured during the period; or
  2. Which replicate those manufactured during the period.
14.26.3.8 The following machines or their major and minor components:

  1. Suzuki RG500 MKVI,
  2. Yamaha TZ250H.
14.26.3.9 Unless contained in the machines original specifications, all anti dive devices and external fork damping.
14.26.3.10 Replica fork sliders, calipers and anti-dive devices must be visually indistinguishable from factory original.

SECTION 14E: TECHNICAL REGULATIONS: PERIOD


14.17 PERIOD 1 AND 2 SOLO

14.17.1 Requirements: Period 1 and 2

14.17.1.1 At least one efficient braking system and a primary drive guard if so driven;
14.17.1.2 Round or oval number plates.
14.17.1.3 Unless otherwise contained in the machine’s original specifications, wheel rim widths must not exceed WM3.
14.17.1.4 Major components that were manufactured outside a specific period but which are visually compatible with period components shall be eligible at the discretion of the Historic Road Race Commission.

14.17.2 Permitted uses: Period 1 and 2

14.17.2.1 Pure methanol fuel with no additives other than lubricating oil.
14.17.2.2 Amal GP, Monobloc and MK1 concentric to 35mm (1 ⅜ inch).
14.17.2.3 All period carburettors.

14.17.3 Prohibited uses: Period 1 and 2

14.17.3.1 Slick or grooved slick tyres.
14.17.3.2 Shock absorbers with remote or external reservoirs.

14.18 PERIOD 3 SOLO

14.18.1 Requirements: Period 3

14.18.1.1 Unless otherwise contained in the machine’s original specifications, wheel rim dimensions of a minimum of 18″ (457mm) diameter, and maximum WM3 width on all wheels.
14.18.1.2 Oval number plates.
14.18.1.3 Front and Rear Brakes: Any drum brake with a maximum internal diameter of 230mm.

14.18.2 Permitted uses: Period 3

14.18.2.1 Pure methanol fuel with no additives other than lubricating oil.
14.18.2.2 The following carburettors:

  1. All non-period Amal carburettors up to 40mm, or
  2. Dellorto SS1 and Dellorto concentric non-pumper carburettors up to 40mm,
  3. Keihin CR and PW round bore series carburettors up to a nominal 30mm,
  4. Mikuni VM round slide carburettors up to 40mm,
  5. Gardner Type C carburettors up to 40mm.
14.18.2.3 Diaphragm clutches, tooth belt drives and electronic ignition, provided they are concealed from view.
14.18.2.4 Triumph 8- and 9-stud cylinder heads.
14.18.2.5 Reinforced gearbox castings.
14.18.2.6 Cerani GP Forks or replicas thereof (e.g. Maxton).

14.18.3 Prohibited uses: Period 3

14.18.3.1 Direct crankcase induction other than rotary disc valve on 2 -strokes.
14.18.3.2 Reed valves on 2-strokes.
14.18.3.3 Non-motorcycle engines and transmissions.
14.18.3.4 Disc brakes.
14.18.3.5 Slick or grooved slick tyres.
14.18.3.6 Shock absorbers with remote or external reservoirs.

14.19 PERIOD 4 SOLO

14.19.1 Requirements: Period 4

14.19.1.1 Unless otherwise contained in the machine’s original specifications, wheel rim dimensions of a minimum of 18″ (457mm) diameter, and maximum WM4 width on all wheels.
14.19.1.2 Oval or rectangular number plates.
14.19.1.3 Reed valves and crank case induction on 2-stroke engines, but only if the engine of original manufacture was so fitted
14.19.1.4 All lateral covers/engine cases containing oil and which could be in contact with the ground during a crash, must be protected by a second cover made from composite materials, type carbon or Kevlar, or be fitted with heavy duty crash resistant end cases made from solid metal. Plates and/or bars from aluminium or steel are also permitted. All these devices must be designed to be resistant against sudden shocks and must be fixed properly and securely. Bonding alone is not a suitable method of mounting.
14.19.1.5 All high pressure oil lines to be secured by a pressure type fitting; worm drive clamps do not comply.

14.19.2 Permitted uses: Period 4

14.19.2.1 Mechanical fuel injection.
14.19.2.2 Pure methanol fuel with no additives other than lubricating oil.
14.19.2.3 Keihin CR Special round slide carburettors up to 33mm bore size.
14.19.2.4 Lockheed 4-fin brake calipers.

14.19.3 Prohibited uses: Period 4

14.19.3.1 Accessory air assisted front forks.
14.19.3.2 Electronic fuel injection.
14.19.3.3 All power jet carburettors and all other carburettors that are fitted with any form of auxiliary/primary jet mounted so as to feed into the air stream prior to the main carburettor body.
14.19.3.4 Mono-shock rear ends.
14.19.3.5 The following machines or their major components:

  1. Kawasaki 900Z1,
  2. Yamaha TZ,
  3. Yamaha RD.
14.19.3.6 Mag wheels (cast metal wheels).
14.19.3.7 Rear disc brakes, unless originally factory fitted.
14.19.3.8 Slick or grooved slick tyres.
14.19.3.9 Shock absorbers with remote or external reservoirs.

14.20 PERIOD 5 SOLO

14.20.1 Requirements: Period 5

14.20.1.1 Unless otherwise contained in the machine’s original specifications,

  1. For 125cc to 500cc machines, the wheel rim must have:
    1. A minimum diameter of 18″ (457mm), and
    2. A maximum width of 2.5″ (63.5mm) front and 4″ (101.6mm) rear.
  2. For Unlimited class, the wheel rim must have:
    1. Minimum diameters of 16″ (407mm) front and minimum of 17″ (432mm) rear, and
    2. A maximum width of 3.5″ (89 mm) front and 5″ (127mm) rear with maximum 180 section as moulded on the tyre.
14.20.1.2 Period forks:

  1. Forks of a type manufactured in the period up to a maximum diameter of 41mm,
  2. Forks which replicate the type manufactured in the period up to a maximum diameter of 41mm.
14.20.1.3 Rectangular number plates.
14.20.1.4 Front and rear brakes:

  1. Manufactured in the period, or
  2. Which replicate those manufactured in the period.
14.20.1.5 All lateral covers/engine cases containing oil and which could be in contact with the ground during a crash, must be protected by a second cover made from composite materials, type carbon or Kevlar , or be fitted with heavy duty crash resistant end cases made from solid metal. Plates and/or bars from aluminium or steel are also permitted. All these devices must be designed to be resistant against sudden shocks and must be fixed properly and securely. Bonding alone is not a suitable method of mounting.
14.20.1.6 All high pressure oil lines to be secured by a pressure type fitting; worm drive clamps do not comply.

14.20.2 Permitted uses: Period 5

14.20.2.1 The following machines or their major components:

  1. Kawasaki 900Z1,
  2. Yamaha TZ,
  3. Yamaha RD and LC.
14.20.2.2 Spoked and mag-type (cast metal) wheels.
14.20.2.3 Slick type racing tyres, cut slicks and racing wets.
14.20.2.4 The swingarm must be as manufactured or modified in accordance with modifications carried out in the period, or an aftermarket item available in the period, or a replica of an aftermarket item available in the period.

14.20.3 Prohibited uses: Period 5

14.20.3.1 Floating front and rear discs unless:

  1. Manufactured in the period, or
  2. Which replicate those manufactured in the period.
14.20.3.2 The following machines or their major and minor components:

  1. Yamaha TZ250H,
  2. Yamaha TZ250J,
  3. 1981 Suzuki RG 500,
  4. 1982 Suzuki RG 500.
14.20.3.3 Unless contained in the machine’s original specifications, all anti-dive devices and external fork damping.
14.20.3.4 Replica fork sliders, calipers and anti-dive devices must be visually indistinguishable from factory original.
14.20.3.5 Electronic fuel injection.
14.20.3.6 The use of carbon fibre and Kevlar materials, and other materials presented as having the appearance of carbon fibre, with the exception of Period 5 two-stroke exhaust systems only.

14.21 PERIOD 6 SOLO

14.21.1 Requirements: Period 6

14.21.1.1 Period forks:

  1. Conventional forks of a type manufactured in the period,
  2. Conventional forks which replicate the type manufactured in the period. See GCR 14.21.3.5 for exception.
14.21.1.2 Rectangular number plates.
14.21.1.3 Front and rear brakes:

  1. Manufactured in the period, or
  2. Which replicate those manufactured in the period.
14.21.1.4 All lateral covers/engine cases containing oil and which could be in contact with the ground during a crash, must be protected by a second cover made from composite materials, type carbon or Kevlar, or be fitted with heavy duty crash resistant end cases made from solid metal. Plates and/or bars from aluminium or steel are also permitted. All these devices must be designed to be resistant against sudden shocks and must be fixed properly and securely. Bonding alone is not a suitable method of mounting.
14.21.1.5 Formula 750/1300 Based Machines

To be eligible for a Formula class, machines shall be of a make and model that was generally available to the Australian public during the period as supplied by the original factory of manufacture for normal road use. It is expected that machines will not be altered significantly from the original specification; accordingly all modifications will need to be proven to be of the period.

The following items must remain standard to the original specification to comply with Formula classification:

  1. Frame (from steering head to rear of seat support) may be braced and brackets for road-going equipment may be removed. However the rear sub frame may be replaced with an aftermarket item or a rear sub frame or seat support may be manufactured,
  2. Petrol tank (fillers and taps may be removed/replaced. Fuel capacity may be reduced or enlarged as long as general appearance and dimensions are not changed),
  3. Engine castings,
  4. Position of the cylinders and heads relative to the crank case,
  5. Number of valves and ports in the engine on both the intake and exhaust side.
  6. Bodywork and seat changes for catch tray and provision of suitable area for numbering are allowed, internal fairing dam or catch tray must have a capacity of 2.5 litres for 2-strokes and 3 litres for 4-strokes.
14.21.1.6 All high pressure oil lines to be secured by a pressure type fitting, worm drive clamps do not comply.

14.21.2 Permitted uses: Period 6

14.21.2.1 Ride height adjuster including dog bones and linkages.
14.21.2.2 Steering damper.
14.21.2.3 Tyre choice is open, but wheels must be from or visually indistinguishable from models available in the period. Maximum rim width front = 3.5 inch, Maximum rim width rear = 6 inch.
14.21.2.4 Fuel tanks maybe changed or modified provided they appear visually compatible with period components.

14.21.3 Prohibited uses: Period 6

14.21.3.1 Radial brakes are prohibited.
14.21.3.2 Carbon fibre discs are prohibited.
14.21.3.3 Carbon fibre wheels are prohibited.
14.21.3.4 Replica fork sliders, calipers and anti-dive devices must be visually indistinguishable from factory original.
14.21.3.5 Inverted forks are excluded unless originally fitted to the motorcycle represented. Only original inverted forks may be used.
14.21.3.6 Superchargers and Turbochargers are prohibited unless originally fitted equipment.
14.21.3.7 Fuel injection where fuel is injected directly into the combustion chambers is not permitted. Manifold injection is allowed provided it is the original system supplied on the machine.
14.21.3.8 The following machines or their major components:

  1. Kawasaki ZXR 750 J
  2. Yamaha FZR 1000 RU
  3. Suzuki GSX-R1100 M
  4. Yamaha TZ250B V-twin

Machines that were released for the 1991 model year are excluded unless all major components remain unchanged, therefore fully satisfying GCR14.12.

14.21.3.9 Period 6 250 Production only: Slick or grooved slick tyres prohibited.
14.21.3.10 Period 6 Production

Open to all 2-stroke and 4-stroke production based road bikes. To be eligible for racing, the motorcycle must be a production model manufactured between 1983 – 1990. Period 6 Production machines must comply with Road Race GCR 13.16 and 13.17.
14.21.3.11 Period 6 250 Production machines.
The following items may be modified from the original equipment manufacturer (OEM):

  1. Bodywork may be replaced, provided the replacement bodywork provides a similar profile to the original equipment,
  2. External gearing and drive chain,
  3. Tyres must be manufactured for road use in all weather conditions (use of slicks or grooved slicks prohibited),
  4. Brake pads and brake hoses,
  5. Exhaust system, provided it is similar to OEM,
  6. Handlebars,
  7. Hand and foot controls,
  8. Front fork springs and internals,
  9. Rear shock and/or spring,
  10. Instrument cluster may be removed or replaced,
  11. Unnecessary brackets may be removed,

All other parts must remain as supplied by the manufacturer

14.22 SIDECARS AND CYCLECARS: GENERAL

14.22.0.1 Ground clearance of no less than 65mm for the whole of the underside of the machine (excluding wheels), measured with the machine handlebars in the straight ahead position, race ready with rider and passenger on board,
14.22.0.2 Left-hand and right-hand sidecars may compete against each other in Historic Road Racing.

14.23 PERIOD 1 AND 2 SIDECARS AND CYCLECARS

14.23.1 Requirements: Period 1 and 2

14.23.1.1 At least one efficient braking system and a primary drive guard if so driven.
14.23.1.2 Sidecars must:

  1. Use a frame of a type which could be ridden solo, with an outrigger sidecar chassis of tubular steel construction,
  2. Be bolted at a minimum of 4 points.
14.23.1.3 Wheel rim dimensions of a minimum of 18″ (457mm) diameter, and maximum WM4 width on all wheels.
14.23.1.4 Oval number plates.

14.24 PERIOD 3 SIDECARS AND CYCLECARS

14.24.1 Requirements: Period 3

14.24.1.1 The height to the top bearing of the steering head must be at least 710mm (28″) unladen.
14.24.1.2 Wheel rim diameters of at least:

  1. Front 16″ (406mm),
  2. Rear 13″ (330mm),
  3. Sidecar 10″ (254mm).
14.24.1.3 Wheel rim widths of no more than:

  1. Front 3″ (76mm),
  2. Rear 4.5″ (115mm),
  3. Sidecar 4″ (102mm).
14.24.1.4 Tyre outside diameters must be at least 22″ (560mm) front and rear.
14.24.1.5 Oval or rectangular number plates.
14.24.1.6 Front and rear Brakes:

  1. Any drum brake with a maximum internal diameter of 230mm or less,
  2. Sidecar wheel brake prohibited,
  3. Linking of brakes is prohibited,
  4. Front brakes are to be hand controlled and rear brakes are to be foot controlled.

14.24.2 Permitted uses: Period 3

14.24.2.1 Pure methanol fuel with no additives other than lubricating oil.
14.24.2.2 The following carburettors are allowed:

  1. All non-period Amal carburettors up to 40mm,
  2. Dellorto SSI and Dellorto concentric non-pumper carburettors up to 40mm,
  3. Keihin CR and PW round bore series carburettors up to a nominal 30mm,
  4. Mikuni VM round slide carburettors up to 40mm,
  5. Gardner Type C carburettors up to 40mm,
  6. All period carburettors.
14.24.2.3 Diaphragm clutches, tooth belt drives and electronic ignition, provided they are concealed from view.
14.24.2.4 Triumph 8 and 9-stud cylinder heads.
14.24.2.5 Non-motorcycle wheels and brakes providing they meet existing dimensional criteria.
14.24.2.6 Reinforced gearbox castings.

14.24.3 Prohibited uses: Period 3

14.24.3.1 Sidecar kneelers.
14.24.3.2 Non-motorcycle engines and transmissions, except where originally fitted.
14.24.3.3 Disc brakes.

14.25 PERIOD 4 SIDECARS AND CYCLECARS

14.25.1 Requirements: Period 4

14.25.1.1 Wheel rim diameters of be at least 10″ (254mm).
14.25.1.2 Wheel rim widths of no more than 6″ (153mm).
14.25.1.3 Moulded tread type tyres.
14.25.1.4 Front and rear brakes:

  1. Manufactured in the period,
  2. Which replicate those manufactured in the period,
  3. Sidecar brake permitted,
  4. Only mechanical brake bias adjustment permitted,
  5. Linking of front and rear brakes prohibited,
  6. Linking of rear and sidecar brakes permitted.
  7. Disc brakes manufactured in the period or are an exact replica of those manufactured in the period,
  8. Front brakes must be hand controlled. Rear and linked sidecar brakes must be foot controlled.
14.25.1.5 Front exit sidecar chassis configuration only.
14.25.1.6 Oval or rectangular number plates.

14.25.2 Permitted uses: Period 4

14.25.2.1 Pure methanol fuel with no additives other than lubricating oil.
14.25.2.2 Mechanical fuel injection.
14.25.2.3 Non-motorcycle wheels and brakes provided they meet existing dimensional criteria.
14.25.2.4 Hydraulic brake master cylinders of cylindrical appearance.
14.25.2.5 Keihin CR Special round slide carburettors up to 33mm bore size.
14.25.2.6 Lockheed four-fin brake calipers.

14.25.3 Prohibited uses: Period 4

14.25.3.1 The following machines or their major components:

  1. Kawasaki 900Z1,
  2. Yamaha TZ,
  3. Yamaha RD.
14.25.3.2 Electronic fuel injection.
14.25.3.3 Power jet carburettors.

14.26 PERIOD 5 SIDECARS AND CYCLECARS

14.26.1 Requirements: Period 5

14.26.1.1 Wheel rim diameters to be no greater 13″ (330mm).
14.26.1.2 Wheel rim widths to be no greater than:

  1. Front 7″ (178mm),
  2. Rear 9″ (229mm),
  3. Sidecar 8″ (203mm).
14.26.1.3 Rectangular number plates.
14.26.1.4 Front, rear and sidecar brakes:

  1. Manufactured in the period,
  2. Which replicate those manufactured in the period,
  3. Hydraulic bias adjusters permitted,
  4. Linking of brakes permitted,
  5. Must be fitted with an emergency system operated by a handlebar lever with a simple circuit operating on either front or rear of the motorcycle.
14.26.1.5 Front and/or rear sidecar exit configuration.
14.26.1.6 Steering / front forks:

  1. Leading or trailing forks, with front wheel equally supported on both sides,
  2. A cycle car with two forward wheels that was manufactured in the period or is an exact replica of those manufactured in the period.
14.26.1.7 Sidecars must use a frame of circular or non-circular tubular steel construction with a maximum diameter of 102mm (4″) at the broadest point, which was manufactured in the period or is a replica of a frame manufactured in the period.
14.26.1.8 Methanol Fuel

14.26.2 Permitted uses: Period 5

14.26.2.1 Slick type racing tyres, cut slicks and racing wets.
14.26.2.2 Motorcycle engines that were manufactured in the period.
14.26.2.3 Methanol fuel.

14.26.3 Prohibited uses: Period 5

14.26.3.1 Liquid cooled 4-stroke motorcycle engines.
14.26.3.2 Rear engine sidecars.
14.26.3.3 Steerable sidecar wheels.
14.26.3.4 Monocoque construction.
14.26.3.5 Banking sidecars.
14.26.3.6 Electronic fuel injection.
14.26.3.7 Floating front discs unless:

  1. Manufactured during the period; or
  2. Which replicate those manufactured during the period.
14.26.3.8 The following machines or their major and minor components:

  1. Suzuki RG500 MKVI,
  2. Yamaha TZ250H.
14.26.3.9 Unless contained in the machines original specifications, all anti dive devices and external fork damping.
14.26.3.10 Replica fork sliders, calipers and anti-dive devices must be visually indistinguishable from factory original.