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1909 Curtiss V-TwinDescription1909 Curtiss V-TwinGlenn Curtiss, unlikely to have been aware of the prior uses of the twist grip, used it in his 1904 motorcycle land-speed record machine, and is sometimes credited as the inventor of the device. Indian claimed in their advertisements, also for their 1904 models, to have invented the twist grip. Whether Curtiss, Gottlieb Daimler, or Roper were the true inventors, the 1904 Indian would be the earliest use of the device on a production motorcycle. On May 7 1901, motorcycle racer Ralph Hamlin (also an Orient dealer) beats 3 other motorcycles on his Orient. This was considered America's first motorcycle race. This took place at the Los Angele's Agriculture Park horse track. GlennCurtissMuseum Equipment Specifications
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