AMENDMENTS & RULE CHANGES TO MCUI STANDING REGULATIONS INTER CENTRE CONFERENCE 2018 CHAPTER 2 STANDING REGULATIONS FOR PRE 1973 CLASSIC RACING MACHINES 18. Additional machines to be included within Classic Pre-73 “Unlimited” class. (A) To include the following 4-cylinder Honda machines: CB750/4 CB500/4 cylinder (and CB550/4 as continuation of model) CB350/4 cylinder (and CB400/4 as continuation of model) (B) All machines to be single overhead cam only (C) No slipper clutch allowed (D) Frame must be of a type and model used within appropriate period for the model and must maintain the manufacturer’s original dimensions and shape. (E) Brakes - - Must be of a period design (F) Wheels – As per section 11 (G) Tyres - -As per section 12 (H) Ignition - As per section 4 (I) Carburettors: Must be of a period Pre-73 design. (J) Suspension: Front forks to be of period look telescopic design Maximum stanchion diameter 35mm No External reservoir on rear shocks. (K) Exhaust Systems: Exhaust can be 4 into 4 /4 into 2 or 4 into 1 Must not exceed 105dB when measured (L) Oil containment as per Section 17 Machines must display Unlimited class number plates - -White Background Black Numbers Machines Must be registered as per MCUI GCR’s In the event of class oversubscribed, grid to be filled using appropriate individual class qualifying time Other Machines to be included in classic unlimited class will include period replica and original models of multi cylinder exotica Pre-1973 Grand Prix racing machines such as the following: MV500/4, MV 500/3, Paton500 twin, Benelli 500/4, Benelli 350/4, Benelli 250/4, Gilera 500/4 CHAPTER 3 (Updated December 2018) TABLE OF CONTENTS Pages 19-21 Young Guns Challenge Pages 22-24 Junior Cup Pages 25-31 Supersport 300 (ICC December 2018) Pages 32-33 125GP and 250 GP Page 34 Moto 450 Pages 35-36 Lightweight Supersport Pages 37-38 Moto 3 Pages 39-41 Production Twins Pages 42-43 Super Twins Pages 44-47 Pre - Injection Page 48 Forgotten Era Pages 49-52 Supersport Pages 53-57 Superstock (To include Superstock 1000, Junior Stock) Pages 58-62 Superbike Pages 63-64 Formula 1 Era Superbikes Pages 65-73 MCUI Technical Regulations Handbook MCUI SUPERSPORT 300 TECHNICAL REGULATIONS EVERYTHING THAT IS NOT AUTHORISED AND PRESCRIBED IN THESE REGULATIONS IS STRICTLY FORBIDDEN. Supersport 300 motorcycles require an FIM homologation. All machines must be normally aspirated. All motorcycles must comply in every respect with all the requirements for road racing as specified in these Technical Regulations unless they are already equipped as such on the homologated model. The appearance from the front, rear and the profile of Supersport 300 motorcycles must (except when otherwise stated) conform to the homologated shape (as originally produced by the manufacturer). The appearance of the exhaust system is excluded from this rule. 1. Motorcycle specifications All parts and systems not specifically mentioned in the following articles must remain as originally produced by the manufacturer for the homologated motorcycle. 2. Eligible Machines The class is based around the MCRCB/MSVR Junior Supersport & FIM SS300 Technical Regulations. The MCUI (UC) has the right to decide which machines will be eligible in the class. The following machines will be legal. This list can be amended at any time by the MCUI - Honda CBR500R - Kawasaki Ninja 300 (EX300ADF) - Kawasaki Ninja 400 (EX400) - KTM RC390 - KTM RC390R - Yamaha YZF-R3 250-300cc machines previously used in the Junior Cup Class will be permitted. 3. Balancing various motorcycle concepts The MCUI(UC) reserve the right to applying balancing to the machines in the class as they see fit in order to maintain equality amongst machines. Methods may include but are not limited to the following: - Rev Limit - Weight limit change The decision to apply the handicap will be taken by the MCUI (UC) at any time deemed necessary to ensure fair competition. 4. Minimum weight (Subject to change in order to conform to FIM/MCRCB Regulations) The minimum weight for each model is as follows: Honda CBR500R 153Kg Kawasaki Ninja 300 (EX300ADF) 140Kg Kawasaki Ninja 400 145Kg Yamaha YZF-R3 140Kg KTM RC390 136Kg At any time of the event, the weight of the whole motorcycle (including the tank and its contents) must not be lower than the minimum weight. There is no tolerance on the minimum weight of the motorcycle. During the final technical inspection at the end of the race, the selected motorcycles will be weighed in the condition they finished the race, and the established weight limit must be met in this condition. Nothing may be added to the motorcycle. This includes all fluids. During the practice and qualifying sessions, riders may be asked to submit their motorcycle to a weight control. In all cases the rider must comply with this request. The use of ballast is allowed to stay over the minimum weight limit and may be required due to the handicap system. The use of must be declared to the Chief Technical Officer at the preliminary checks. 5. Numbers and number plates for font type and size see MCUI Standing Regulations, Technical Regulations Handbook. In case of a dispute concerning the legibility of numbers, the decision of the Technical Steward or Scrutineer will be final. Manufacturer Number Background Honda White Red Kawasaki White Green Yamaha White Blue KTM White Orange 6. Fuel Only Unleaded and Super Unleaded pump fuels are permitted, maximum 102 RON. 7. Tyres The MCUI will impose a controlled tyre and all tyres must be provided by the official tyre supplier. Further conditions will be stated in SS300 Championship Conditions and any bulletins issued by the MCUI. The use of tyre warmers is allowed. Any modification (cutting, grooving) is forbidden. 8. Engine Machines will be randomly chosen for dyno testing. MCUI SUPERSPORT 300 TECHNICAL REGULATIONS (Continued 1) 9. Fuel injection system a. The original homologated fuel injection system must be used without any modification. b. The fuel injectors must be stock and unaltered from the original specification and manufacture. c. Air Funnels must remain as originally produced by the manufacturer for the homologated motorcycle. d. Butterfly valves cannot be changed or modified. e. Secondary throttle valves plates may be removed or fixed in the open position and the electronics may be disconnected or removed. The secondary throttle shaft(s) must remain in place. f. All the parts of the variable intake tract device must remain and operate exactly as homologated. They cannot be added if not fitted to the homologated machine. g. Air and air/fuel mixture can go to the combustion chamber exclusively through the throttle body butterflies. h. Electronically controlled throttle valves, known as ‘ride-by-wire’, may only be used if the homologated model is equipped with the same system. Software may not be modified and all the safety systems and procedures designed by the original manufacturer must be maintained. 10. Cylinder Head a. Must be the originally fitted and homologated part with no modification allowed. b. The exhaust air bleed system must be blocked and the external fittings on the cam cover(s) may be replaced by plates. c. The head gasket may be changed. 11. Camshaft Assembly a. Must be the originally fitted and homologated part with no modification allowed. b. At the technical checks: for direct cam drive systems, the cam lobe lift is measured; for non-direct cam drive systems (i.e. with rocker arms), the valve lift is measured. 12. Cam sprockets or gears a. Cam sprockets may be slotted to allow the adjustment of cam timing. b. Pressed on cam sprockets may be replaced with an adjustable boss and cam sprocket. c. The cam chain and tensioner must remain as homologated. 13. Cylinders Must be the originally fitted and homologated part with no modification allowed. 14. Pistons Must be the originally fitted and homologated part with no modification allowed. 15. Piston rings Must be the originally fitted and homologated part with no modification allowed. 16. Piston pins and clips Must be the originally fitted and homologated part with no modification allowed. 17. Connecting rods Must be the originally fitted and homologated part with no modification allowed. 18. Crankshaft Must be the originally fitted and homologated part with no modification allowed. 19. Crankcase / Gearbox housing Must be the originally fitted and homologated parts with no modification allowed. 20. Lateral covers and protection See MCUI General Rules, Chapter 12 Technical Rules, Paragraph 9 21. Transmission / Gearbox a. Must be the originally fitted and homologated parts with no modification allowed except: i. The positive neutral selector mechanism may be removed. ii. Shift star/indexer and detent may be replaced but must function as originally designed. b. Quick-shift (upshift) systems are allowed. The unit must be the MCUI; MCRCB/MSVR approved quickshifter/rev limiter. c. Downshift blipping is not allowed. d. Countershaft sprocket, rear wheel sprocket, chain pitch and size may be changed. e. The sprocket cover may be modified or eliminated. f. Chain guard as long as it is not incorporated in the rear fender may be removed. 22. Clutch a. Clutch system (wet or dry type) and the method of operation (by cable or hydraulic) must remain as homologated. b. Friction and drive discs may be changed. c. Clutch springs (and number) may be changed. d. The clutch basket (outer) must be the originally fitted and homologated part but may be reinforced. e. The original clutch inner assembly may be modified or replaced by an aftermarket clutch, also including back torque limiting capabilities (slipper type). 23. Oil pumps and oil lines Must be the originally fitted and homologated part with no modification allowed.