Grand Prix motorcycle racing is the premier championship of motorcycle road racing, which has been divided into three classes: MotoGP, Moto2, and Moto3. Former classes that have been discontinued include 350cc, 250cc, 125cc, 50cc/80cc, MotoE, and Sidecar. The Grand Prix Road-Racing World Championship was established in 1949 by the sport's governing body, the Fédération Internationale de Motocyclisme (FIM), and is the oldest motorsport world championship in existence.

There were five classes when the championship started in 1949: 500cc, 350cc, 250cc, 125cc, and sidecar (600cc). The 50cc class was introduced in 1962. Due to escalating costs that resulted in a number of manufacturers leaving the championship, the FIM limited the 50cc bikes to a single cylinder, the 125cc and 250cc bikes were limited to two cylinders, and the 350cc and 500cc bikes were limited to four cylinders. The 350cc class was discontinued after 1982, two years later the 50cc class was replaced with an 80cc class, which was discontinued after 1989. The sidecar class left the series to form its own championship after 1996. In 2002, 990cc bikes replaced the 500cc bikes and the class was renamed as MotoGP. 600cc bikes replaced the 250cc bikes in 2010, with the class rebranded as Moto2. Starting 2012, the Moto3 class (250cc one cylinder) replaced the 125cc class.

The 750cc was never part of the Grand Prix motorcycle racing series.

The Constructors' World Championship is awarded to the most successful constructor over a season, as determined by a points system based on Grand Prix results. Only the highest-scoring rider in each race for each constructor contributing points towards the Championship. The winner of the constructors' world championship is not necessarily the bike used by the riders' world champion. For example, in 2004, Valentino Rossi who rode a Yamaha bike won the riders' world championship, but in the constructors' standings, Honda have higher points than Yamaha, therefore Honda won constructors' world championship.

For the sidecar class, the constructors championship went to the engine manufacturer, not the chassis manufacturer. For the Moto2 class, the championship goes to the chassis manufacturer, not the engine manufacturer, since all competitors are required to use spec engines provided by Triumph (Honda from 2010 until 2018).

By year +Key(X)Denotes the number of times the constructor has won the championship for that class*Winning constructor is different from the bike manufacturer of the Riders' Champion that yearConstructorChampionship is not officially recognized Year 500cc 350cc 250cc 125cc Sidecar 1949 AJS (1) Velocette (1) Mondial (1) 1950 Norton* (1) Velocette (2) Benelli (1) Mondial (2) Norton (2) 1951 Norton (2) Norton (1) Moto Guzzi (2) Mondial (3) Norton (3) 1952 Gilera1952 World championship standings (1) Norton (2) Moto Guzzi (3) Norton (4) 1953 Gilera (2) NSU (1) MV Agusta* (2) Norton (5) 1954 Gilera Moto Guzzi NSU NSU Norton 1955 Gilera (3) Moto Guzzi (2) MV Agusta* (1) MV Agusta (3) BMW (1) 1956 Moto Guzzi (3) MV Agusta (2) MV Agusta (4) BMW (2) 1957 Gilera (4) Gilera* (1) Mondial (1) Mondial (4) BMW (3) 1958 MV Agusta (2) MV Agusta (1) MV Agusta (3) MV Agusta (5) BMW (4) 1959 MV Agusta (3) MV Agusta (2) MV Agusta (4) MV Agusta (6) BMW (5) 1960 MV Agusta (4) MV Agusta (3) MV Agusta (5) MV Agusta (7) BMW (6) 1961 MV Agusta (5) MV Agusta (4) Honda (1) Honda (1) BMW (7) Year 500cc 350cc 250cc 125cc 50cc Sidecar 1962 MV Agusta (6) Honda (1) Honda (2) Honda (2) Suzuki (1) BMW (8) 1963 MV Agusta (7) Honda (2) Honda (3) Suzuki (1) Suzuki (2) BMW (9) 1964 MV Agusta (8) Honda (3) Yamaha (1) Honda (3) Suzuki (3) BMW (10) 1965 MV Agusta (9) Honda (4) Yamaha (2) Suzuki (2) Honda (1) BMW (11) 1966 Honda* (1) Honda (5) Honda (4) Honda (4) Honda* (2) BMW (12) 1967 MV Agusta (10) Honda (6) Honda (5) Yamaha (1) Suzuki (4) BMW (13) 1968 MV Agusta (11) MV Agusta (5) Yamaha (3) Yamaha (2) Suzuki (5) BMW (14) 1969 MV Agusta (12) MV Agusta (6) Benelli (2) Kawasaki (1) Derbi (1) BMW (15) 1970 MV Agusta (13) MV Agusta (7) Yamaha (4) Suzuki (3) Derbi (2) BMW (16) 1971 MV Agusta (14) MV Agusta (8) Yamaha (5) Derbi (1) Kreidler (1) BMW (17) 1972 MV Agusta (15) MV Agusta (9) Yamaha (6) Derbi (2) BMW (18) 1973 Yamaha* (1) Yamaha (7) Yamaha (3) Kreidler (3) BMW (19) 1974 Yamaha* (1) Yamaha (2) Yamaha* (8) Yamaha (4) Kreidler (4) König (1) 1975 Yamaha (2) Yamaha (3) Kreidler (5) König (2) 1976 Suzuki (1) Yamaha* (4) Harley-Davidson Morbidelli (2) Bultaco (1) König (3) 1977 Suzuki (2) Yamaha (5) Yamaha* (9) Morbidelli (3) Bultaco (2) 1978 Suzuki* (3) Kawasaki (1) Kawasaki (1) Minarelli Bultaco (3) Yamaha (2) Year 500cc 350cc 250cc 125cc 50cc Sidecar B2A Sidecar B2B 1979 Kreidler (6) Year 500cc 350cc 250cc 125cc 50cc Sidecar 1980 Bimota-Yamaha (1) Kreidler (7) 1981 Suzuki (6) Kawasaki (4) Minarelli (3) Bultaco (4) Yamaha (6) Year 500cc 350cc 250cc 125cc Sidecar 1982 Suzuki (7) Kawasaki (4) Yamaha (10) Garelli (1) Yamaha (7) Year 500cc 250cc 125cc 50cc Sidecar 1983 Honda (2) Yamaha (11) MBA* (1) Garelli* (1) Yamaha (8) Year 500cc 250cc 125cc 80cc Sidecar 1984 Honda* (3) Yamaha (12) Garelli (2) Yamaha (9) 1985 Honda (4) Honda (6) MBA* (2) Krauser (1) 1986 Honda* (7) Garelli (3) Derbi (1) 1987 Yamaha* (4) Honda (8) Garelli (4) Derbi (2) Krauser (1) 1988 Yamaha (5) Honda (9) Derbi (3) Derbi (3) Krauser (2) 1989 Honda (5) Honda (10) Honda* (5) Krauser* (2) Krauser (3) Year 500cc 250cc 125cc Sidecar 1990 Honda (6) Krauser (4) 1991 Yamaha (7) Honda (11) Honda (7) Krauser (5) 1992 Honda* (6) Honda (12) Honda* (8) Krauser (6) 1993 Yamaha* (8) Honda* (13) Honda (9) Krauser (7) 1994 Honda (7) Honda* (14) Honda* (10) LCR-ADM (1) 1995 Honda (8) Aprilia (1) Honda (11) 1996 Honda (9) Honda* (15) Aprilia* (1) LCR-ADM (3) Year 500cc 250cc 125cc 1997 Honda (10) Honda (16) Aprilia (2) 1998 Honda (11) Aprilia (2) Honda* (12) 1999 Honda (12) Aprilia (3) Honda (13) 2000 Yamaha* (9) Yamaha (14) Honda* (14) 2001 Honda (13) Honda (17) Honda* (15) Year MotoGP 250cc 125cc 2002 Honda (14) Aprilia (4) Aprilia (3) 2003 Honda (15) Aprilia (5) Aprilia* (4) 2004 Honda* (16) Honda (18) Aprilia* (5) 2005 Yamaha (10) Honda (19) KTM* (1) 2006 Honda (17) Aprilia (6) Aprilia (6) 2007 Ducati (1) Aprilia (7) Aprilia (7) 2008 Yamaha (11) Aprilia* (8) Aprilia* (8) 2009 Yamaha (12) Aprilia* (9) Aprilia (9) Year MotoGP Moto2 125cc 2010 Yamaha (13) Suter* (1) Derbi (4) 2011 Honda (18) Suter* (2) Aprilia (10) Year MotoGP Moto2 Moto3 Honda* (19) Suter (3) KTM (1) Honda (20) Kalex (1) KTM (2) Honda (21) Kalex (2) KTM* (3) Yamaha (14) Kalex (3) Honda (1) Honda (22) Kalex (4) KTM (4) Honda (23) Kalex (5) Honda (2) Honda (24) Kalex (6) Honda (3) Honda (25) Kalex (7) Honda (4) Ducati* (2) Kalex (8) Honda* (5) Ducati* (3) Kalex (9) KTM (5) Ducati (4) Kalex (10) GasGas (1) Ducati (5) Kalex (11) KTM* (6) Ducati (6) Kalex* (12) CFMoto (1) Ducati (7) Kalex (13) KTM (7) KTM (8)

By constructor Constructors in bold are participating in any of the classes of the 2026 World Championship. Unrecognized titles are not counted. Constructor Moto2 Moto3 350cc 250cc 125cc 80cc 50cc Total Honda255 61915 2 72 Yamaha 14 5 14 4 11 48 MV Agusta 16 9 5 7 37 Aprilia 9 10 19 BMW 19 19 Suzuki 7 3 5 15 Kalex 13 13 Norton 2 2 5 9 KTM 8 1 9 Kawasaki 4 4 1 9 Derbi 4 3 2 9 Krauser 2 7 9 Ducati 7 7 Kreidler 7 7 Moto Guzzi 3 3 6 Gilera 4 1 5 Mondial 1 4 5 Garelli 4 1 5 Bultaco 4 4 Suter 3 3 Morbidelli 3 3 Minarelli 3 3 König 3 3 LCR-ADM 3 3 Velocette 2 2 Benelli 2 2 MBA 2 2 AJS 1 1 GasGas 1 1 CFMoto 1 1 Bimota-Yamaha 1 1 NSU 1 1 Harley-Davidson 1 1 Zündapp 1 1 Total 76 16 15 33 59 61 6 21 48 335

By country Countries in bold have a constructor of that nationality participating in any of the classes of the 2026 World Championship. Country Moto2 Moto3 350cc 250cc 125cc 80cc 50cc Total 46 5 15 37 23 7 11 144 27 14 20 33 1 95 13 1 3 7 29 53 1 4 3 6 14 3 4 5 12 8 1 9 3 3 6 1 1 1 1 Total 76 16 15 33 59 61 6 21 48 335

Notes

References

External links The Official MotoGP Website