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The Crocker Motorcycle Company is an American manufacturer, based in Los Angeles, California, founded by Albert Crocker.Located at 1346 Venice Blvd, Crocker produced a series of kits and whole motorcycles between 1931 and 1941: an overhead-valve conversion kit for the Indian 101 Scout motor (1932), a single-cylinder speedway racer (1934), powerful V-twin road motorcycles (1936–40), and the ...
By using engine and rear wheel sprockets the gear ratio can be adjusted as required for track conditions. [9] The use of methanol allows for an increased compression ratio to the engine producing more power than other fuels and resulting in higher speeds (approximately 130 kilometres per hour (81 mph) when cornering).
Two-wheeled, three-wheeled and four-wheeled scooters which appeared around 2000. A kick scooter (also referred to as a push-scooter or scooter) is a human-powered street vehicle with a handlebar, deck, and wheels propelled by a rider pushing off the ground with their leg.
The series was launched as the Speedway 250cc Youth World Cup. At launch it was limited to 250cc speedway bikes and for competitors 16 years of age or under, which has remained ever since. In 2018 it was renamed the Speedway World Youth Championship, [3] before changing names again in 2022 to SGP3.
Cycle speedway bikes are simple and robust. Steel and aluminium still rule in cycle-speedway. No suspension, upright handlebars, a low, single gear with a freewheel and 26 inch wheels (ETRTO:590) with heavily treaded tyres. They are purpose-built for getting through a cycle speedway race as fast as possible and doing so in one piece.
Ice speedway is an evolution of dirt speedway racing, which first started in 1923. Staten Lorenz of Michigan is generally credited with the invention of the sport, in 1975.
Alfred Joseph Hagon (born 3 October 1931 [citation needed]) is an English former motorcycle speedway rider who later competed in Grasstrack. [1] He manufactured off-road competition frames, forks and other components, later developing into the production of shock absorbers, specialising in modern-replicas of the traditional Girlings used as original equipment and replacements for historic ...
Unlike Speedway bikes which have no gears, Grasstrack bikes usually have a 2 speed gearbox. [1] Both Speedway and Grasstrack bike have no brakes. [1] The only other main difference is that speedway bikes have no rear suspension and are shorter in length, usually by around 10–12 inches. Also there is a class called Pre-75.