1950 Grand Prix motorcycle racing season best four results counted. 1950 Grand Prix motorcycle racing season The 1950 Grand Prix motorcycle racing season was the second F.I.M. Road Racing World Championship Grand Prix season. The season consisted of six Grand Prix races in five classes: 500cc, 350cc, 250cc, 125cc and Sidecars 600cc. It began on 10 June, with Isle of Man TT and ended with Nations Grand Prix on 10 September. Points were awarded to the top six finishers in each race. All rounds counted towards the championship in the 125cc and Sidecars, the best three races counted in the 250cc, while in the 350cc and
1991 Grand Prix motorcycle racing season 1991: Points are awarded to the top fifteen finishers. A rider has to finish the race to earn points. Points are awarded to the top fifteen finishers. A rider has to finish the race to earn points. 1991 Grand Prix motorcycle racing season The 1991 Grand Prix motorcycle racing season was the 43rd F.I.M. Road Racing World Championship season. The beginning of the 1990s marked a golden age for Grand Prix motorcycle racing. The rivalry between Wayne Rainey and Kevin Schwantz was in full flow while Mick Doohan started to come into his own. Eddie Lawson had switched to Cagiva