From Wikipedia, the free encyclopedia

The machines participating in Grand Prix motorcycle racing, since its origin in 1949, have been entered into distinct classes depending primarily on engine capacity. The smallest engines and two-stroke engines have been phased out over the years.

MotoGP class

1000cc (2012–present)

800 cc (2007–2011)

990 cc (2002–2006)

500 cc class (1949–2002)

350 cc class (1949–1982)

Moto2 class (2010–present)

250 cc class (1949–2009)

Moto3 class (2012–present)

125 cc class (1949–2011)

80 cc class (1984–1989)

50 cc class (1962–1983)