Pro Stock Motorcycle Pro Stock Motorcycle Pro Stock Motorcycle, formerly known as Pro Stock Bike, is a motorcycle drag racing class that is the two-wheeled equivalent of Pro Stock. It has been a feature of NHRA drag racing since the 1980s when it was added to the professional class structure and has since spread around the globe. The first points championship season was the 1987 NHRA season. The class has for years been dominated by inline-4 cylinder Suzuki based bikes but in recent years Harley-Davidson based V-twin machines have become more competitive due to favorable rule changes (160 c.i. Harleys vs. 107 c.i
Curtiss V-8 motorcycle Curtiss V-8 motorcycle The Curtiss V-8 motorcycle was a V8 engine-powered motorcycle designed and built by aviation and motorcycling pioneer Glenn Curtiss that set an unofficial land speed record of on January 24, 1907. The air-cooled F-head engine was developed for use in dirigibles. The forty horsepower engine was the two carburetor version of the Curtiss Model B-8 aircraft powerplant, one of thirteen engines listed in the May 1908 "Aerial and Cycle Motors" catalog. The engine weighed and was offered for US$1,200 but it did not sell, in spite of the engine's notoriety from the speed record. An eight carburetor