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
Tempo (motorcycle manufacturer) Tempo (motorcycle manufacturer) Tempo was a Norwegian motorcycle and moped brand. Jonas Øglænd made the rolling chassis and most of the parts thereof, and Fichtel & Sachs AG made the engines for the majority of the models. After 1972 the company made mopeds only. In 1868 Jonas Øglænd started his business with mounting and selling bicycles. One of the brands was "The World", initially made in USA, starting licence production in Sandnes, Norway in 1906. In the early 30s the idea of putting an engine in the frame of one of these bicycles was born, and serial production of the