Class Regulations

These are the Class Regulations that describe in detail which machines are eligible for entry into which classes in the VMCC Bridgestone Motorcycle Racing Series.  Before you complete a Race Series entry form please take a few moments to make sure you understand the Race Series Format.

Please also check out the Motorcycling New Zealand inc. Manual of Motorcycle Sport (road) and VMCC Supplementary Regulations under which the race series will be run.

VMCC JUNIOR TROPHY REGULATIONS

VMCC Junior Trophy shall be a restricted class of road racing, under the following conditions:

  1. The maximum 2 stroke engine capacity size is 150cc; re boring to maximum over size of 0.50mm is allowed.
  2. The maximum 4 stroke engine capacity size is 380cc Single Cylinder and 325cc for 2 cylinders maximum over size of 0.50mm is allowed.
  3. The motorcycles are not to be 125GP bikes.
  4. The minimum age limit for Junior Race Class shall be:
    1. 13 years for F4 and 150cc 2 Stroke.
    2. 15 years for all other bikes.
  5. All junior competitors (17 years and younger) are to wear an orange high visibility vest over their leathers for the first 10 events at which they compete. Proof of these events will be from entries in their logbook.

All motorcycles are to be prepared in accordance with Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 10.

Please refer to 10.2 and 10.3 for number board specifications if not otherwise specified in these rules.

The following race classes are eligible for inclusion within the VMCC Junior class

  1. F4 Miniature Road Racing, as per Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 16.
  2. 250 Production as per Motorcycling New Zealand Inc. Manual of Motorcycle Sport Appendix – H with the exception of homologation.
  3. Lightweight Production as per Motorcycling New Zealand Inc. Manual of Motorcycle Sport Appendix – I with the exception of homologation.
  4. Hyosung Cup Class (Regulations covering these are in the Victoria Motorcycle Club website).
  5. VMCC Clubmans Junior must fit the following requirements:
    1. up to and incl 150cc 2 stroke.
    2. up to 380cc 4 stroke single.
    3. 325cc twin cylinder.
    4. 250cc 3 or 4 cylinder street type road registrable mass production machines of any make sold or on sale in New Zealand, in standard specification).

Preparation of Motorcycle for Clubmans Junior

  1. All items not mentioned in the following must remain as originally produced by the manufacturer.
  2. All motorcycles are to be prepared in accordance with Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 10.
  3. In instances of wear and tear damage or failure, parts may be replaced but must not derive a performance advantage.
  4. Fuel refer to rule 10.21 and appendix D.
  5. All motorcycles must display the manufacturer’s vehicle identification number on the frame. Additional seat brackets may be added but none may be removed. Bolt on accessories to the sub frame may be removed.
  6. Number boards will follow MNZ rules 10.2 and 10.3 then white background with black numbers.

Modifications or Removal Allowed

  1. Footrests/foot controls must bolt on the frame in the original position and be same height and position as standard. Solid footrest are allowed.
  2. Handlebar height and angle of bars must remain standard.
  3. Hand controls: clutch and brake levers can be modified.
  4. Brake lines and brake pads can be modified.
  5. The speedo drive may be removed and replaced with a spacer.
  6. Fairing, front guard, windscreen and bodywork must retain the original shape as produced by the manufacturer, but these parts can be replaced with an exact cosmetic copy.
  7. Carbon fibre is restricted to the reinforcing parts only; carbon fibre cannot be used elsewhere. Small plastic cones/knobs may be added to the machine to minimise accident damage.
  8. All exposed edges must be rounded.
  9. Seat and seat base and associated bodywork may be replaced with parts of similar appearance as the original shape; the top portion of the seat may be modified to create a solo seat.
  10. Fuel lines may be replaced Quick connectors or dry break quick connectors may be used. Fuel line vents may be replaced. fuel filter may be fitted.
  11. Base and head gasket with standard parts, but must retain original thickness.
  12. Carburettor jetting / fuel injection tuning is allowed.
  13. External gearing and chains may be changed.
  14. Suspension springing and oil may be changed.
  15. Fasteners may be drilled for safety wire only. Fairing fasteners may be changed for quick disconnect type. Titanium/aluminium fasteners may not be used.
  16. All 4 stroke; standard headers aftermarket mufflers allowed.
  17. Rims may be changed, but must be production bike rims. No aftermarket or GP rims allowed.
  18. Motorcycle must be equipped with a functional ignition kill switch or button mounted on the handlebars that is capable of stopping a running engine.
  19. Where breather or overflow pipes are fitted they must discharge via existing outlets into a catch tank. The original closed system can be retained; no direct atmospheric emission is permitted.
  20. Instruments, horn, brackets and associated cables can be removed.
  21. Toolbox can be removed.
  22. Radiator fan and wiring can be removed.
  23. Rear guard / chain guard can be removed.

The following items must be removed

  1. Passenger footrests / grab rails unbolted only.
  2. Number plate / number plate bracket.
  3. Safety bars, centre and side stands (fixed/welded brackets must remain).
  4. Headlamp, rear lamp, blinkers.

Items not allowed

  1. The fitment of aftermarket traction control units.
  2. Rear shock and all linkages must remain standard modifications.
  3. Tyre warmers.
  4. Frame body and rear sub frame modifications.
  5. Emulator valves or modifications to damping mechanisms.
  6. The inner and outer front fork stanchion must remain standard.

The choice of tyre is optional

  1. Must be commercially available in New Zealand.
  2. Be worn no more than the tread depth indicators.
  3. In the event of the meeting being declared wet, a treaded DOT tyre MUST be used.

VMCC SENIOR TROPHY REGULATIONS

Senior Trophy class will exist for ‘formula’ type machines. The capacity groups listed below allow modifications to the machines to be carried out while still keeping a similar level of performance between machines.

Capacity groups

  1. 591 – 1300cc maximum displacement, 4- 8 cylinders, 4-stroke.
  2. 600 – 1300cc maximum displacement 3 cylinders 4-stroke.
  3. 696cc – open twin cylinder four stroke 4 Valve.
  4. 751 cc – open twin cylinder four stroke 2 Valve.
  5. 401 –  500cc maximum displacement, 4 cylinders, 2-stroke.
  6. 401 – 760cc maximum displacement 2 – 3 cylinders 2-stroke.
  7. 501cc to Open Single Cylinder 2 Stroke.

Engine Specifications

  1. Any aftermarket or race piston and ring set may be fitted provided the cylinder remains within the capacity limit.
  2. The original carburettor/fuel injection may be replaced by any brand or type.
  3. No turbocharging.
  4. No supercharging.
  5. No nitrous or other performance enhancing add ons of this type.
  6. No oval piston engines.

Preparation of Motorcycle

  1. All motorcycles are to be prepared in accordance with Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 10.
  2. Machines with re-bored cylinders must remain within the appropriate capacity limit
  3. Machines must be fitted with clip-on or road style handlebars. No MX, Motard, Enduro or trail/dual purpose style of handle bars will be allowed
  4. Fuel: Refer 10.21 and Appendix D of Motorcycling New Zealand Inc. Manual of Motorcycle Sport
  5. Number boards will follow MNZ rules 10.2 and 10.3, figures must be black or white.

Modifications permitted

Provided all the previous requirements are met all other items are unrestricted.

VMCC INTERMEDIATE TROPHY REGULATIONS

Intermediate Trophy class will exist for ‘formula’ type machines. The capacity groups listed below allow modifications to the machines to be carried out while still keeping a similar level of performance between machines.

Capacity Groups

  1. 251 – 450cc 4 stroke 3 or 4 cylinders.
  2. 401 – 750cc 4 stroke 2 cylinders Twin Valve.
  3. 401 – 695cc 4 Stroke 2 Cylinders Multi Valve.
  4. Open Single cylinder 4 stroke Multi Valve.
  5. 0 – 400cc 2 stroke Multi Cylinders (2, 3, or 4).
  6. 0-  500cc single cylinder 2 stroke.

Engine Specifications

  1. Any aftermarket or race piston and ring set may be fitted provided the cylinder remains within the capacity limit.
  2. The original carburettor/fuel injection may be replaced by any brand or type.
  3. No turbocharging.
  4. No supercharging.
  5. No nitrous or other performance enhancing add ons of this type.
  6. No oval piston engines.

Preparation of Motorcycle

  1. All motorcycles are to be prepared in accordance with Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 10.
  2. Machines with re-bored cylinders must remain within the appropriate capacity limit.
  3. Machines must be fitted with clip-on or road style handlebars. No MX, Motard, Enduro or trail/dual purpose style of handle bars will be allowed.
  4. Fuel: Refer 10.21 and Appendix D of Motorcycling New Zealand Inc. Manual of Motorcycle Sport.
  5. Number boards will follow MNZ rules 10.2 and 10.3, figures must be black or white.

Modifications permitted

Provided all the previous requirements are met s, all other items are unrestricted.

SUPER MOTARD TROPHY REGULATIONS

Refer to Chapter 10 & 20 of the Motorcycling New Zealand Inc. Manual of Motorcycle Sport.

VMCC F3 REGULATIONS

VMCC F3 class exists for the groups listed below:

The following race classes are eligible for inclusion within the VMCC F3 class:

  1. Superlite prepared as per Motorcycling New Zealand Inc. Manual of Motorcycle Sport Appendix B.
  2. 125GP & 250 Mono prepared as per Motorcycling New Zealand Inc. Manual of Motorcycle Sport Appendix G.
  3. 650cc Pro Twins prepared as per Motorcycling New Zealand Inc. Manual of Motorcycle Sport Appendix E.

Preparation of Motorcycle

  1. All motorcycles are to be prepared in accordance with Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 10.
  2. Machines with re-bored cylinders must remain within the appropriate capacity limit.
  3. Machines must be fitted with clip-on or road style handlebars. No MX, Motard, Enduro or trail/dual purpose style of handle bars will be allowed.
  4. Fuel: Refer 10.21 and Appendix D of Motorcycling New Zealand Inc. Manual of Motorcycle Sport.
  5. Number boards will follow MNZ rules 10.2 and 10.3, colours as per Relevant class.

VMCC F1 REGULATIONS

VMCC F1 class will exists for ‘formula’ type machines. The capacity groups listed below allow modifications to the machines to be carried out while still keeping a similar level of performance between machines.

Capacity Groups

  1. 601 – 1300cc maximum displacement, 4- 8 cylinders, 4-stroke.
  2. 680 – 1300 maximum displacement 3 cylinders 4-stroke.
  3. 751cc to open twin cylinder four stroke.
  4. 351 –  500cc maximum displacement, 4 cylinders, 2-stroke.
  5. 401 – 760cc maximum displacement 2 – 3 cylinders 2-stroke.

Engine Specifications

  1. Any aftermarket or race piston and ring set may be fitted provided the cylinder remains within the capacity limit.
  2. The original carburettor/fuel injection may be replaced by any brand or type.
  3. No turbocharging.
  4. No supercharging.
  5. No nitrous or other performance enhancing add ons of this type.
  6. No oval piston engines.

Preparation of Motorcycle

  1. All motorcycles are to be prepared in accordance with Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 10.
  2. Machines with re-bored cylinders must remain within the appropriate capacity limit.
  3. Machines must be fitted with clip-on or road style handlebars. No MX, Motard, Enduro or trail/dual purpose style of handle bars will be allowed.
  4. Fuel: Refer 10.21 and Appendix D of Motorcycling New Zealand Inc. Manual of Motorcycle Sport.
  5. Number boards will follow MNZ rules 10.2 and 10.3, colours as per Superbike.

Modifications permitted

Provided all the previous requirements are met all other items are unrestricted.

VMCC F2 REGULATIONS

F2 class will exist for ‘formula’ type machines. The capacity groups listed below allow modifications to the machines to be carried out while still keeping a similar level of performance between machines.

Capacity Groups

  1. 451 – 675cc 4 stroke 3 cylinders.
  2. 401 – 600cc 4 stroke 4 cylinders.
  3. 651 – 750cc 4 stroke 1 – 2 cylinders.
  4. 401 – 490cc production based 2 stroke.
  5. 261 – 351cc competition based 2 stroke.

Engine Specifications

  1. Any aftermarket or race piston and ring set may be fitted provided the cylinder remains within the capacity limit.
  2. The original carburettor/fuel injection may be replaced by any brand or type.
  3. No turbocharging.
  4. No supercharging.
  5. No nitrous or other performance enhancing add ons of this type.
  6. No oval piston engines.

Preparation of Motorcycle

  1. All motorcycles are to be prepared in accordance with Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 10.
  2. Machines with re-bored cylinders must remain within the appropriate capacity limit.
  3. Machines must be fitted with clip-on or road style handlebars. No MX, Motard, Enduro or trail/dual purpose style of handle bars will be allowed.
  4. Fuel: Refer 10.21 and Appendix D of Motorcycling New Zealand Inc. Manual of Motorcycle Sport.
  5. Number boards will follow MNZ rules 10.2 and 10.3, colours as per 600 SuperSport.

Modifications permitted

Provided all the previous requirements are met all other items are unrestricted.

VMCC THUNDERBIKE SENIOR REGULATIONS

The VMCC Thunderbike class exists for machines pre 2000 that ONLY came from the manufacturer with carburettors. No major or minor parts from later models that had fuel injection may be used.

Bikes built prior to 1989 are permitted to have fuel injection if it was original on that model.

The dating of replicated major components is defined as the year of manufacture of the original component being replicated.

The onus of proof of eligibility shall rest wholly upon the rider or entrant of the machine.

Major components are:

  1. All engine and gearbox external castings.
  2. Frames.
  3. Swing arms.
  4. Brake Discs and Callipers.
  5. Forks and fork yokes.
  6. Carburettors.

Capacity Groups

  1. 601cc – 1300cc 4 Stroke Machines
  2. 401cc – 750cc 2 Stroke Machines

Preparation of Motorcycle

  1. All motorcycles are to be prepared in accordance with Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 10.
  2. All machines must be of a production road bike and must have a compliance plate. Machines without compliance plates will be judged by frame number and model year.
  3. No specialised race only machinery will be eligible.
  4. Fairings, streamlining and cosmetic components must be based on patterns known and used in the period. Components manufactured outside the period are eligible if they are visually indistinguishable from components available within the period being depicted.
  5. Modifications to major components are allowed, providing such modifications are visually indistinguishable from modifications proven to have been used in the period.
  6. Tyre choice and wheel size is open but wheels must be from or visually indistinguishable from models available in the period.
  7. Fuel: Refer 10.21 and Appendix D of Motorcycling New Zealand Inc. Manual of Motorcycle Sport.
  8. Number boards will follow MNZ rules 10.2 and 10.3, colours as per Post Classic Pre-89 or other relevant post classic class.

VMCC THUNDERBIKE INTERMEDIATE REGULATIONS

250GP machines will be included in the VMCC Thunderbike Intermediate class.  Regulations for 250GP can be found at the end of this section.

The VMCC Thunderbike class exists for pre 2000 that ONLY came from the manufacturer with carburettors.  No major or minor parts from later models that had fuel injection may be used.

Bikes built prior to 1989 are permitted to have fuel injection if it was original on that model.

Capacity Groups

  1. 0 – 400cc 2 Stroke Machines.
  2. 0 – 600cc 4 Stroke Machines.

The dating of replicated major components is defined as the year of manufacture of the original component being replicated.

The onus of proof of eligibility shall rest wholly upon the rider or entrant of the machine.

Major components are:

  1. All engine and gearbox external castings.
  2. Frames.
  3. Swing arms.
  4. Brake Discs and Callipers.
  5. Forks and fork yokes.
  6. Carburettors.

Any machine that is within the Thunderbike Intermediate capacity groups and is fitted with any major component from a machine in the Thunderbike Senior capacity groups will be moved up into the Thunderbike Senior group that the donor machine would normally occupy.

Preparation of Motorcycle

  1. All motorcycles are to be prepared in accordance with Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 10.
  2. All machines must be of a production road bike and must have a compliance plate. Machines without compliance plates will be judged by frame number and model year.
  3. No specialised race only machinery will be eligible.
  4. Fairings, streamlining and cosmetic components must be based on patterns known and used in the period. Components manufactured outside the period are eligible if they are visually indistinguishable from components available within the period being depicted.
  5. Modifications to major components are allowed, providing such modifications are visually indistinguishable from modifications proven to have been used in the period.
  6. Tyre choice and wheel size is open but wheels must be from or visually indistinguishable from models available in the period.
  7. Fuel: Refer 10.21 and Appendix D of Motorcycling New Zealand Inc. Manual of Motorcycle Sport.
  8. Number boards will follow MNZ rules 10.2 and 10.3, colours as per Post Classic Pre-89 or other relevant Post Classic class.

VMCC 250GP REGULATIONS

This class of motorcycle has been reintroduced by VMCC through requests from club members. The VMCC 250GP class will be included within Intermediate Trophy and Thunderbike Intermediate Sprint Cup.

13 year old competitors may not participate in the 250cc GP class.

Machine Specifications

250GP Machines must be up to 250cc two cylinder 2 stroke with a maximum of a 6 speed gearbox.

Preparation of Motorcycle

  1. All motorcycles are to be prepared in accordance with Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 10.
  2. All machines must be fitted with an integral lower fairing dam (Belly Pan) or separate catch tray which must be constructed and fitted to trap and hold engine oil and coolant with a capacity of not less than, two strokes=2.5 litres.
  3. Number boards will follow MNZ rule 10.2a for size and placement and will be black numbers on yellow background.
  4. Fuel: Refer 10.21 and Appendix D of Motorcycling New Zealand Inc. Manual of Motorcycle Sport.
  5. The choice of tyre is optional:
    1. Must be commercially available in New Zealand.
    2. Be worn no more than the tread depth indicators.
  6. The following may be added:
    1. Steering damper.
    2. Ride height adjuster.
    3. Lap timing devices.
    4. Data logging devices.
    5. Quick shifter.

VMCC F1 BEARS REGULATIONS

VMCC F1 BEARS class will exists for machines manufactured post 1989 in UK, Europe or Americas. The capacity groups listed below allow modifications to the machines to be carried out while still keeping a similar level of performance between machines.

Capacity Groups

  1. 601 – 1300cc maximum displacement, 4- 8 cylinders, 4-stroke.
  2. 680 – 1300 maximum displacement 3 cylinders 4-stroke.
  3. 751cc to open twin cylinder four stroke.
  4. 351 –  500cc maximum displacement, 4 cylinders, 2-stroke.
  5. 401 – 760cc maximum displacement 2 – 3 cylinders 2-stroke.

Engine Specifications

  1. Any aftermarket or race piston and ring set may be fitted provided the cylinder remains within the capacity limit.
  2. The original carburettor/fuel injection may be replaced by any brand or type.
  3. No turbocharging.
  4. No supercharging.
  5. No nitrous or other performance enhancing add ons of this type.
  6. No oval piston engines.

Preparation of Motorcycle

  1. All motorcycles are to be prepared in accordance with Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 10.
  2. Machines with re-bored cylinders must remain within the appropriate capacity limit.
  3. Machines must be fitted with clip-on or road style handlebars. No MX, Motard, Enduro or trail/dual purpose style of handle bars will be allowed.
  4. Fuel: Refer 10.21 and Appendix D of Motorcycling New Zealand Inc. Manual of Motorcycle Sport.
  5. Number boards will follow MNZ rules 10.2 and 10.3, colours as per Superbike.

Modifications permitted

Provided all the previous requirements are met all other items are unrestricted.

F2 BEARS REGULATIONS

VMCC F2 BEARS class will exists for machines manufactured post 1989 in UK, Europe or Americas. The capacity groups listed below allow modifications to the machines to be carried out while still keeping a similar level of performance between machines.

Capacity Groups

  1. 451 – 675cc 4 stroke 3 cylinders.
  2. 401 – 600cc 4 stroke 4 cylinders.
  3. 651 – 750cc 4 stroke 1 – 2 cylinders.
  4. 401 – 490cc production based 2 stroke.
  5. 261 – 351cc competition based 2 stroke.

Engine Specifications

  1. Any aftermarket or race piston and ring set may be fitted provided the cylinder remains within the capacity limit.
  2. The original carburettor/fuel injection may be replaced by any brand or type.
  3. No turbocharging.
  4. No supercharging.
  5. No nitrous or other performance enhancing add ons of this type.
  6. No oval piston engines.

Preparation of Motorcycle

  1. All motorcycles are to be prepared in accordance with Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 10.
  2. Machines with re-bored cylinders must remain within the appropriate capacity limit.
  3. Machines must be fitted with clip-on or road style handlebars. No MX, Motard, Enduro or trail/dual purpose style of handle bars will be allowed.
  4. Fuel: Refer 10.21 and Appendix D of Motorcycling New Zealand Inc. Manual of Motorcycle Sport.
  5. Number boards will follow MNZ rules 10.2 and 10.3, colours as per 600 SuperSport.

Modifications permitted

Provided all the previous requirements are met all other items are unrestricted.