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
Mondial (motorcycle manufacturer) specification design of chassis and styling. The firm currently offers four variants to the market. The traditionally styled 'café-racer' HPS, available with a 125cc and 250cc engine, as well as the off-road, sportier styled SMT and SMX models. World Championship 1949 World Championship 1950 World Championship 1951 World Championship 1957 After the 1957 Grand Prix season, the major Italian motorcycle manufacturers including Gilera, Moto Guzzi, MV Agusta and Mondial announced that they would pull out of Grand Prix competition citing increasing costs and diminishing sales. 1951 Isle of Man TT 1957 Isle of Man TT Mondial (motorcycle manufacturer) FB Mondial