List of Grand Prix motorcycle racing World Constructors champions

Grand Prix motorcycle racing is the premier championship of motorcycle road racing, which has been divided into three classes: MotoGP, Moto2, and Moto3. Classes that have been discontinued include 500cc, 350cc, 250cc, 125cc, 80cc, 50cc 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.

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 in 1982, two years later the 50cc class was replaced with an 80cc class, which was discontinued in 1989. The sidecar class left the series to form its own championship after 1996. In 2002, 990cc bikes replaced the 500c bikes and the class was renamed as MotoGP.[2] 660cc bikes replaced the 250cc bikes in 2010, with the class rebranded as Moto2.[3] Starting 2012, the Moto3 class (250cc one cylinder) will replace 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 constructor's 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 constructor's 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 Honda engines.

By year

Year	500cc	350cc	250cc	125cc	Sidecar
1949	AJS	Velocette	Moto Guzzi	Mondial	Norton
1950	Norton	Velocette	Benelli	Mondial	Norton
1951	Norton	Norton	Moto Guzzi	Mondial	Norton
1952	Gilera	Norton	Moto Guzzi	MV Agusta	Norton
1953	Gilera	Moto Guzzi	NSU	MV Agusta	Norton
1954	Gilera*	Moto Guzzi*	NSU*	NSU*	Norton*
1955	Gilera	Moto Guzzi	MV Agusta	MV Agusta	BMW
1956	MV Agusta	Moto Guzzi	MV Agusta	MV Agusta	BMW
1957	Gilera	Gilera	Mondial	Mondial	BMW
1958	MV Agusta	MV Agusta	MV Agusta	MV Agusta	BMW
1959	MV Agusta	MV Agusta	MV Agusta	MV Agusta	BMW
1960	MV Agusta	MV Agusta	MV Agusta	MV Agusta	BMW
1961	MV Agusta	MV Agusta	Honda	Honda	BMW

Year	500cc	350cc	250cc	125cc	50cc	Sidecar
1962	MV Agusta	Honda	Honda	Honda	Suzuki	BMW
1963	MV Agusta	Honda	Honda	Suzuki	Suzuki	BMW
1964	MV Agusta	Honda	Yamaha	Honda	Suzuki	BMW
1965	MV Agusta	Honda	Yamaha	Suzuki	Honda	BMW
1966	Honda	Honda	Honda	Honda	Honda	BMW
1967	MV Agusta	Honda	Honda	Yamaha	Suzuki	BMW
1968	MV Agusta	MV Agusta	Yamaha	Yamaha	Suzuki	BMW
1969	MV Agusta	MV Agusta	Benelli	Kawasaki	Derbi	BMW
1970	MV Agusta	MV Agusta	Yamaha	Suzuki	Derbi	BMW
1971	MV Agusta	MV Agusta	Yamaha	Derbi	Kreidler	BMW
1972	MV Agusta	MV Agusta	Yamaha	Derbi	Kreidler	BMW
1973	MV Agusta	Yamaha	Yamaha	Yamaha	Kreidler	BMW
1974	Yamaha	Yamaha	Yamaha	Yamaha	Kreidler	König
1975	Yamaha	Yamaha	Harley-Davidson	Morbidelli	Kreidler	König
1976	Suzuki	Yamaha	Harley-Davidson	Morbidelli	Bultaco	König
1977	Suzuki	Yamaha	Yamaha	Morbidelli	Bultaco	Yamaha
1978	Suzuki	Kawasaki	Kawasaki	Minarelli	Bultaco	Yamaha

Year	500cc	350cc	250cc	125cc	50cc	Sidecar B2A	Sidecar B2B
1979	Suzuki	Kawasaki	Kawasaki	Minarelli	Kreidler	Yamaha	Yamaha

Year	500cc	350cc	250cc	125cc	50cc	Sidecar
1980	Suzuki	Bimota	Kawasaki	Minarelli	Van Veen Kreidler	Yamaha
1981	Suzuki	Kawasaki	Kawasaki	Minarelli	Motul Bultaco	Yamaha
1982	Suzuki	Kawasaki	Yamaha	Garelli	Kreidler	Yamaha

Year	500cc	250cc	125cc	50cc	Sidecar
1983	Honda	Yamaha	MBA	Garelli	Yamaha
Year	500cc	250cc	125cc	80cc	Sidecar
1984	Honda	Yamaha	Garelli	Zündapp	Yamaha
1985	Honda	Honda	MBA	Krauser	Yamaha
1986	Yamaha	Honda	Garelli	Derbi	Yamaha
1987	Yamaha	Honda	Garelli	Derbi	Krauser
1988	Yamaha	Honda	Derbi	Derbi	Krauser
1989	Honda	Honda	Honda	Krauser	Krauser

Year	500cc	250cc	125cc	Sidecar
1990	Yamaha	Yamaha	Honda	Krauser
1991	Yamaha	Honda	Honda	Krauser
1992	Honda	Honda	Honda	Krauser
1993	Yamaha	Honda	Honda	Krauser
1994	Honda	Honda	Honda	ADM
1995	Honda	Aprilia	Honda	ADM
1996	Honda	Honda	Aprilia	ADM

Year	500cc	250cc	125cc
1997	Honda	Honda	Aprilia
1998	Honda	Aprilia	Honda
1999	Honda	Aprilia	Honda
2000	Yamaha	Yamaha	Honda
2001	Honda	Honda	Honda
Year	MotoGP	250cc	125cc
2002	Honda	Aprilia	Aprilia
2003	Honda	Aprilia	Aprilia
2004	Honda	Honda	Aprilia
2005	Yamaha	Honda	KTM
2006	Honda	Aprilia	Aprilia
2007	Ducati	Aprilia	Aprilia
2008	Yamaha	Aprilia	Aprilia
2009	Yamaha	Aprilia	Aprilia
Year	MotoGP	Moto2	125cc
2010	Yamaha	Suter	Derbi
2011	Honda	Suter	Aprilia
Year	MotoGP	Moto2	Moto3
2012	Honda	Suter	KTM

• 1954 Constructors' titles were not recognized by the Federation following a political crisis with the constructors (represented by the International Permanent Bureau of Motorcycle Manufacturers) concerning the number of races to be held during the season and the abolition of the riders' championship.

By constructor

1954 titles not counted

Constructor	MotoGP / 500cc	350cc	Moto2 / 250cc	Moto3 / 125cc	80cc / 50cc	Sidecar / B2A / B2B	Total
Honda	19	6	19	15	2		61
Yamaha	13	5	14	4		11	47
MV Agusta	16	9	5	7			37
Aprilia			9	10			19
BMW						19	19
Suzuki	7			3	5		15
Norton	2	2				5	9
Kawasaki		4	4	1			9
Derbi				4	5		9
Krauser					2	7	9
Moto Guzzi		4	3				7
Kreidler					7		7
Gilera	4	1					5
Mondial			1	4			5
Garelli				4	1		5
Minarelli				4			4
Suter			3				3
Morbidelli				3			3
Bultaco					3		3
König						3	3
ADM						3	3
Velocette		2					2
Benelli			2				2
Harley-Davidson			2				2
KTM				2			2
MBA				2			2
Ducati	1						1
NSU			1				1
AJS	1						1
Bimota		1					1
Zündapp					1		1
Motul Bultaco					1		1
Van Veen Kreidler					1		1
Total	64	34	64	64	28	49	303

By country

Country	MotoGP / 500cc	350cc	Moto2 / 250cc	125cc	80cc / 50cc	Sidecar / B2A / B2B	Total
Japan	39	15	37	23	7	11	132
Italy	22	15	20	34	2		93
Germany			2	1	10	29	42
United Kingdom	3	4				6	13
Spain				4	8		12
Switzerland			3			3	6
United States			2				2
Austria				2			2
Netherlands					1		1
Total	64	34	64	64	28	49	303

External links

• The Official MotoGP Website