Hyosung Cup Class Regulations

The Hyosung Cup Class is eligible for inclusion within the VMCC Junior class as described in the Class Regulations.

Hyosung Cup Class Regulations

This class of motorcycle requires an MNZ Homologation, with a minimum of 50 units sold of that mass produced motorcycle.

This homologated motorcycle must be a street type, road registerable and WOF mass production machine, available and sold new in New Zealand.

This class is restricted to Hyosung GT250’s, GT250R’s, GD250N (X4) and GD250R (X4R) manufactured from 2003.

Competitors must be 15 years or older.

All junior competitors (15-17 years) are to wear an orange high visibility vest to be worn over their leathers for the first 10 events at which they compete. Proof of these events will be from entries in their logbook.

NOTE: All items not mentioned in the following articles must remain as originally produced by the manufacturer, remain fitted and operational for that homologated model. The parts and service manuals for the homologated models will be used as reference to confirm standard specifications.

  1. V Twin or single cylinder four stroke 250cc engines.
  2. Only OEM engine parts for the homologated model may be fitted – In the case of over boring, only oversizes listed as genuine options in the manufacturer’s parts book for the homologated model may be used. Only the manufacturers gaskets may be used.
  3. Number Plate Colours and placement: Prefer to rule 10.2 and 10.3 then orange background with black numbers.
  4. Fuel This class must function on normal unleaded fuel with a maximum lead content of 0.013g/l (unleaded) and a maximum RON of 98.
  5. Tyres
    1. Only treaded tyres on sale to the general public in New Zealand as E or DOT marked road legal type treaded, all weather fitment will be permitted.
    2. No specialist rain / wet tyres allowed, even if E or DOT marked. No modification or treatment of the tread or carcass is permitted.
  6. All motorcycles are to be prepared in accordance with Motorcycling New Zealand Inc. Manual of Motorcycle Sport Chapter 10.
  7. Modifications Allowed
    1. All front fork internals must remain as originally supplied by the machines manufacturer. Quality and quantity of the oil in forks is free to change.
    2. The height and position of the front fork in relation to the top yoke (fork crown) is free.
    3. Muffler: Slip-on Alloy or Stainless steel only, original headers must be retained.
    4. Drive sprockets and chain width may be changed.
    5. Handlebars and levers may be changed, but the height and angle of the bars must remain as standard. GT250 may fit GT250R handlebars, GD250N may fit clip on type bars.
    6. Instrument panel aftermarket items may be substituted for Tacho/Speedo and temperature gauges.
    7. Foot rest/Foot controls, must be mounted to the frame at the original mounting point and be the same height and position as standard. GD250 and GT250R models may use optional mounting holes to raise the footpegs.
    8. Substitution of rubber topped foot pegs for other material is allowed.
    9. The fitment of an aftermarket sub frame supporting the seat and tailpiece is allowed providing that the construction is as the original OEM parts both in material, construction and design. Items (battery, wiring, ecu, etc) must be fitted to the aftermarket sub frame in the same position as the original OEM fitment.
    10. Small protective cones/knobs may be fitted to minimize accident damage.
    11. Brake disc pads.
    12. Brake lines front and rear.
    13. Spark plugs.
    14. Carburettor jetting and slides. Fuel injected models may run model specific “plug and play, Power Commander type” mixture controllers. NO other modifications/ alterations/ additions to fuel mixture control, ignition curves or wiring loom are allowable.
    15. Ignition, Engine control module/unit (ICM, ECU, ECM) and wiring loom must remain standard.
    16. Countershaft sprocket cover may be modified to allow for altered gear change pattern, but must remain fitted to the machine.
    17. Lamda sensor(s) may be removed and replaced with a blanking plug, but the original fitting must remain in the original unmodified header.
  8. Fairing/Body Work
    1. Fibreglass replicas of originals are allowed but the fairing shape and size must remain as homologated.
    2. Headlight, mirror and indicator holes may be filled in. Note that the use of carbon fibre is restricted to small reinforcing amounts in the mounting area only.
    3. Replicas of genuine OEM solo seat cowls for that homologated model may be fitted Effective 1st January 2012.
    4. The original combination instrument/fairing brackets may be changed.
    5. Material may be removed from the side stand bracket to the extent where it does not contact the race track whilst competing.
    6. Fairing screens may be changed for non original and material.
  9. The following items must be removed
    1. Passenger footrests/grab rails.
    2. Side stand.
    3. Safety bars, centre stands (all fixed or welded brackets must remain in place).
    4. Where breather or overflow pipes are fitted they must discharge via existing outlet. The original closed system must be retained; no direct atmospheric emission is permitted.
    5. Headlight, rear light and blinkers must be removed.
    6. Horn.
    7. License plate bracket.
  10. Additional Equipment not fitted on the original homologated model must not be added (ie data acquisition, computers, recording equipment etc).  Lap timers may be used.
  11. The following may be removed
    1. Instruments, brackets and associated cables
    2. Toolbox
    3. Speedometer
    4. Radiator fan and wiring
    5. Number plate/ rear guard
    6. Passenger footpeg brackets may be unbolted only – NO cutting allowed. In cases where the peg hanger is used as a muffler bracket, it may be replaced with an alternative of the same material.
  12. Items not allowed
    1. No data logging  (Lap timers permitted).
    2. The fitment of aftermarket traction control units is not permitted.