| GP 250/SSP 400 | |||||||||||||
| SSP = | SuperSport | until 500ccm 2Strokes -- until 400ccm 4Strokes 4Valves -- until 900ccm 4Strokes 2Valves -- Single cylinder | |||||||||||
| until 636ccm 4Strockes 4cylinders -- until 750ccm 4Strockes 2cylinders | |||||||||||||
| R6, CBR 600, ZX 6, GSX R 600, Ducati 748, 749 | |||||||||||||
| SBK = | SuperBike | over 636ccm 4Strokes 4cylinders -- over 750ccm 4Strokes 2cylinders | |||||||||||
| Ducati 916-999, Aprilia Mille, TL 1000, VTR-SP1, GSX R 750, ZXR 750 + R1, CBR 900, ZX 9, GSX R 1000, Ducati 1098 | |||||||||||||
| This Season we combined the former SBK (750cc) with the STK (1000cc) | |||||||||||||
| ..we then renamed SBK the class over 600 | |||||||||||||