The fundamental principle is as follows:
Beyond manufacturer tolerances, all alterations are prohibited. Minor changes will be prescribed for purposes of close racing and safety. The organizers reserve the right to make changes at any time.
With the exception of the accessories listed in the following, only the original ZONTES parts may be used which are listed in the motorcycles technical handbook.
All parts, with the exception of those comprising the racing kit (fairings) and certain specially defined parts ranges for the ZONTESCUP CHALLENGE or additionally specified parts from the ZONTES CUP CHALLANGE parts range must be of the same type as the motorcycle, and their condition in use must be within the tolerances stated in the workshop handbook and in the manufacturers guidelines.
With the exception of the permitted changes, the motorcycle must conform to the general specifications for motorcycle circuit racing prescribed by Motorsport South Africa.
Acceptable additional racing kit includes:
1. Aftermarket racing fairings;
2. Braided hoses for both front and rear braking systems;
3. Aftermarket rear sets may be fitted;
4. Crash protection kits (crash bobbins, mushrooms, etc.;
5. Handlebar ends, handle bar grips and clutch levers Brake levers.
6. Slip on exhaust canisters .
7. Brake lever protector may be fitted.
8. After market petrol cap can be fitted.The engine identification number must be visible and legible.
All engines, new or used, will be inspected and sealed by the technical consultant or his appointed representative. No motorcycle will be eligible to race without a sealed engine.
The engine casing of the respective type of original engine must be used.
The elements of the engine must be in their original condition and within the manufacturers tolerance range (see workshop handbook and manufacturers guidelines). In particular, any change effected by removing or adding any material, such as the deburring, addition or removal of seals, balancing components, etc. is expressly prohibited unless especially provided for in the present regulations.
The engine ventilation system must remain in its original condition.
All screws for oil outlet screws, oil inlet screws, oil filters, tubes and front brake calipers must be secured with metal wire to prevent accidental opening. The use of engine oil additives is not permitted.
Every motorcycle will be required to be dyno tested and sealed before deemed eligible to partake in the series. An average torque and power curve will be determined per model. A Maximum tolerance of 2.5% will be allowed at any point on the dyno curves for both power and torque. Any motorcycle failing to comply with these
tolerances will be deemed illegal and will have to be proven legal. All costs relating to dyno testing or stripping are for the members account. The motor (top and bottom and clutch cover) and ECU are required to be sealed by the designated 2020 technical controller.
Cylinders: Only original parts of the respective model (the addition or treatment of material is prohibited).
Dimensions and weights of the cylinder must correspond to the original parts (see workshop manual and manufacturers guidelines). The addition or removal of material is prohibited.
Ignition: Only Standard CDI/ECU units, as supplied for the specific vehicle are to be used. No enhancement microchips or additional piggy-back systems for fueling, timing, ignition, etc. are allowed. All ECU’s will have the same MAP, be password protected, and loaded by the manufacturer and will be verified at intervals.
Crankshaft / connecting rods: Only original parts of the respective model, no modifications permitted. The deburring, addition or removal of material is prohibited. Treatment, polishing or balancing of parts is not permitted.
Dimensions and weights of the components must correspond to the original parts (see workshop manual and manufacturers guidelines)
Bearings: The number dimensions and weight must correspond to manufacturer’s specification.
Pistons, piston rings and retainers: Dimensions and weights of the parts must correspond to the original parts (see workshop manual and manufacturers guidelines).
Only original parts of the respective model, no modifications permitted. The deburring, balancing and addition or removal of material is prohibited.
Cylinder head: Only original cylinder heads. The deburring, addition or removal of material is prohibited, including any modification of inlet rubbers. Dimensions and weights of the parts must correspond to the original parts (see workshop manual and manufacturers guidelines). Only the standard thickness head gasket may be used.
Valves, valve control, control timing: The diagram must correspond to original diagram without modification. The valves, camshafts and the entire valve control with all parts must be in their original condition and may neither be altered, repositioned or polished. Dimensions and weights of the parts must correspond to the original specification (see workshop manual and manufacturers guidelines).
Injection and ignition: All parts must be in original, unmodified condition of the relevant vehicle type; standard setting values are recommended, confirmed by Zontes.
Air filter / Air box / Air channels: All elements of the air intake area, pipes, air filter, air box, sealing components and casings must be in the original condition of the model described and remain within manufacturer tolerances, with the exception that noise reduction flaps in the inlet tract may be removed. Only original air filters may be used. After market air ducts and brackets may be used.
Wiring harness, electrical connections: The wiring harness of the relevant vehicle type must be retained in unmodified form. No additional switches, components or cables must be looped in or added. Shortening in the form of cutting is prohibited. The following alterations to electrical components are permitted/required:
- Removal of cable connections for rear light from last plug to rear light.
- Removal of cable connections for horn from last plug to horn.
- Removal of cable connections for direction indicators from last plug to direction indicators
- The deactivation of the electrical safety system for the side stand by means of bridge-over connector or similar is permitted. In the case of damage caused by a fall during an event, the cable set can be repaired under the super vision of the technical inspector or the ZONTES CUP CHALLENGE Organization. This must be replaced by an original part by the next event. The use of homologated lap timers is permitted. The electrical supply of such lap timers may only be provided directly from the battery poles (in line fuse is compulsory) or by connecting to the supply provided for the headlight or any unused component power supply.
Stator and flywheel: The Stator, its wiring and regulation, must conform to the original condition of the specific model, and remain within manufacturer tolerances.
The stator must always supply the battery with the relevant current as defined by manufacturer requirements. Additional electrical controls are prohibited.
Starter: The electric starter and wiring must be in their original condition and within manufacturer tolerances.
The starter must always be able to start the engine.
Fuel: All motorcycles must use pump fuel available to the general public via normal filling stations. The use of products or (additives or oils) to increase the octane level or combustion properties is prohibited.
Separate samples of the fuel used by any competitor may be requested before and/or after a race. These samples must be taken in accordance with the provisions of GCR 240’s "Guidelines in respect of fuel sampling".
Notwithstanding the above, the Technical Consultant (in conjunction with the Clerk of the Course) may request the use of a controlled fuel no later than 30 minutes prior to the start of a race. Failure to use the controlled fuel when requested shall result in the competitor concerned being prevented from starting the race in question and/or being excluded from the race meeting.
Lubrication: Engine lubrication and the appropriate oil and oil cooling system, are to be maintained in keeping with the original condition of the respective type and must not be altered. The addition of additives to the engine oil is not permitted.
Water coolant radiator: The original radiator must be used in unmodified form. A permanent metal protection grid may be mounted at the air inlet side of the radiator to prevent damage from debris. No anti-freeze additives may be mixed with the water used in the radiator. MoCool Radiator additive from Motul (part no: 102222) may be added. Radiator fan must be present.
Gearbox: No undercutting of gears is permitted
Clutch: Only original parts of the respective model (the deburring, addition or removal of material is prohibited).
||the original ZONTES exhaust end
||canister may be replaced with any
||homologated slip-on unit.
||It is permitted to take the standard exhaust
||system and replace the internal components
||thereof with aftermarket parts (Gutting).
||Standard headers are to be maintained up to
||the entrance of the catalytic converter
|thereafter there is no restriction.