2005 Grand Prix motorcycle racing season 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. Points are awarded to the top fifteen finishers. A rider has to finish the race to earn points. 2005 Grand Prix motorcycle racing season The 2005 Grand Prix motorcycle racing season was the 57th F.I.M. Road racing World Championship season. The 2005 Grand Prix motorcycle racing season began on 10 April at Jerez and closing on 6 November at Valencia. There were seventeen Grands Prix for the
1981 Grand Prix motorcycle racing season developed in the 1950s, to aluminium frames featuring large, twin beams as first pioneered by Spanish constructor, Antonio Cobas. The following Grands Prix were scheduled to take place in 1981: Points are awarded to the top ten finishers. A rider has to finish the race to earn points. 1981 Grand Prix motorcycle racing season The 1981 Grand Prix motorcycle racing season was the 33rd F.I.M. Road Racing World Championship season. Suzuki riders Marco Lucchinelli and Randy Mamola battled it out to the final race of the season with the Italian rider claiming the crown and Mamola finishing runner-up for the