Jan de Vries (motorcyclist)
Encyclopedia
Jan de Vries is a former Grand Prix
Grand Prix motorcycle racing
Road Racing World Championship Grand Prix is the premier championship of motorcycle road racing currently divided into three distinct classes: 125cc, Moto2 and MotoGP. The 125cc class uses a two-stroke engine while Moto2 and MotoGP use four-stroke engines. In 2010 the 250cc two-stroke was replaced...

 motorcycle
Motorcycle
A motorcycle is a single-track, two-wheeled motor vehicle. Motorcycles vary considerably depending on the task for which they are designed, such as long distance travel, navigating congested urban traffic, cruising, sport and racing, or off-road conditions.Motorcycles are one of the most...

 road racer
Road racing
Road racing is a general term for most forms of motor racing held on paved, purpose-built race tracks , as opposed to oval tracks and off-road racing...

. In 1971
1971 Grand Prix motorcycle racing season
The 1971 Grand Prix motorcycle racing season was the 23rd F.I.M. Road Racing World Championship Grand Prix season. The season consisted of twelve Grand Prix races in six classes: 500cc, 350cc, 250cc, 125cc, 50cc and Sidecars 500cc...

 he became the first Dutchman to win a F.I.M.
Fédération Internationale de Motocyclisme
The Fédération Internationale de Motocyclisme is the governing body of motorcycle racing. It represents 103 national motorcycle federations that are divided into six regional continental unions....

 world championship when he claimed the 50 cc
50 cc
The 50 cc class was the ultra-lightweight class in Grand Prix motorcycle racing, and formed part of the Fédération Internationale de Motocyclisme World Championships from 1962 until 1983; when the class was replaced by 80 cc....

 title. In 1973
1973 Grand Prix motorcycle racing season
The 1973 Grand Prix motorcycle racing season was the 25th F.I.M. Road Racing World Championship season.-Season summary:MV Agusta team-mates Phil Read and Giacomo Agostini battled it out for supremacy of the 500cc class but the season was overshadowed by the deaths of Jarno Saarinen and Renzo...

 he won another 50 cc world championship.

He lost the 1972
1972 Grand Prix motorcycle racing season
The 1972 Grand Prix motorcycle racing season was the 24th F.I.M. Road Racing World Championship Grand Prix season. The season consisted of twelve Grand Prix races in six classes: 500cc, 350cc, 250cc, 125cc, 50cc and Sidecars 500cc...

 world championship to Angel Nieto
Angel Nieto
Ángel Nieto Roldán born January 25, 1947 in Zamora, was a multi-time Grand Prix motorcycle roadracing World Champion. He is one of the most successful motorcycle racers of all time, with 13 Grand Prix World Championships to his name....

by the narrowest of margins. The two riders ended the season tied with 69 points and three victories apiece. The championship was decided on aggregate times, with Nieto given the title by mere seconds.

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