1991 FIM Diesel Jeans Superbike World Championship
1991 FIM International Superbike Regulations
Motorcycles for Superbike correspond to motorcycles of current production, available to the public, which have been manufactured and sold for everyday road use. Motorcycles must be approved and homologated by the FIM for competition in FIM Superbike events. Manufacturers are required to produce a minimum number of a specific motorcycle in order for it to be homologated; a factory that produces more than 100,000 units per year must produce 1000 for homologation, a factory producing at least 50,000 units per year must produce 500, and all other factories must produce 200. Only modifications specified within the approved homologation documents for each model are permitted. Number plate colours are white background with black numbers (RAL colour table values: 9005 black and 9010 white).
400-750cc, four-stroke, 3 or 4-cylinder, minimum dry weight 165kg;
550-1000cc, four-stroke, 2-cylinder, minimum dry weight 140kg.
Bimota Tesi 1D; Bimota YB4; Bimota YB4EI; Ducati 851; Ducati 888; Honda VFR750F; Honda RC30 (VFR750R); Kawasaki GPX750; Kawasaki ZXR750 (H1); Kawasaki ZXR750 (H2); Kawasaki ZXR750 (J1); Suzuki GSX-R750 (J); Suzuki GSX-R750 (K); Suzuki GSX-R750 (L); Suzuki GSX-R750 (M); Yamaha FZ750; Yamaha FZR750; Yamaha OW01 (FZR750R).
Only riders in possession of an international competition licence and named on the grading list of the issuing federation are eligible to compete.
2 official qualifying sessions, each rider's fastest lap time from either session is taken as their qualification time. The maximum lap time required to qualify will be equal to 115% of the fastest time. All riders must complete a minimum of 3 timed laps in official qualifying sessions. Grid positions will be allocated to only the maximum number of riders allowed to start at each circuit. Riders who do not receive a grid space but have set a qualifying time will be added to a reserve list and may replace riders who withdraw from the event.
2 races of approximately 100km distance, considered as separate races for the purpose of awarding points and prizes. Riders who fail to finish the first race may start the second race. The starting grid for both races will be based on official qualification times. If a result is declared for a race which has completed less than 75% of its scheduled distance, half-points will be awarded.
Riders Championship: 1st: 20; 2nd: 17; 3rd: 15; 4th: 13; 5th: 11; 6th: 10; 7th: 9; 8th: 8; 9th: 7; 10th: 6; 11th: 5; 12th: 4; 13th: 3; 14th: 2; 15th: 1.
Manufacturers Championship: Points awarded to the highest placed finisher for each manufacturer, according to the same system as the Riders Championship.
Payable in Swiss Francs. 1st: 5,650; 2nd: 4,600; 3rd: 3,250; 4th: 2,750; 5th: 2,250; 6th: 1,900; 7th: 1,700; 8th: 1,450; 9th: 1,300; 10th: 1,150; 11th-15th: 1,050; 16th-20th: 875; 21st-25th: 700; 26th-30th: 550; 31st onwards: 500.