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American Flat Track is an American motorcycle racing series. [1] The racing series, founded and sanctioned by the American Motorcyclist Association (AMA) in 1954, originally encompassed five distinct forms of competitions including mile dirt track races, half-mile, short-track, TT steeplechase and road races .
1950s-era Manx Norton styled replica built for the 1990s named Manxman, using a replica Featherbed frame constructed to special order by BSA [1]. The featherbed frame was a motorcycle frame invented by the McCandless brothers and offered to the British Norton motorcycle company to improve the performance of their racing motorcycles in 1950.
For a normal wheel size and spoke count, only the latter is suitable for a wheel that has to transmit torque from the hub to the rim, as with rear wheels or hub brakes. This rule is occasionally broken where a very large number of spokes is used, or the wheel is unusually small in diameter, either of which reduces the amount of increased ...
A motorcycle fork is the portion of a motorcycle that holds the front wheel and allows one to steer. For handling, the front fork is the most critical part of a motorcycle. The combination of rake and trail determines how stable the motorcycle is. The 'fork' on a motorcycle consists of multiple components.
The 1913 motorcycle championship races were moved to a dirt track because dirt was safer. [30] The national organization overseeing motorcycle racing banned all competitions on board tracks shorter than 1-mile (1.6 km) in 1919. [31] One by one, the manufacturers withdrew their support due to the negative publicity. [27]
The Steffey motorcycle in 1902, essentially a bicycle with a two-stroke engine attached, used wooden, rims with wire spokes. [1] This style of wheel evolved into a stouter motorcycle-specific wheel, still with spokes, up to the 1960s and beyond. [2]: 134 In April, 1922, Borrani started production of motorcycle wheels with an aluminium rim. [3]
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After his motorcycle racing career, Lawwill became one of the top motorcycle racing frame designers and builders. [1] Lawwill then used his experience as a motorcycle frame builder to become an innovative mountain bike designer, developing one of the first bicycle suspensions. [2] He also developed prosthetic limbs for amputees. [2]