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
Bradbury Motor Cycles silver trophy features a winged figure on a Bradbury motorcycle. James Stewart won the event three times between 1907 and 1909 and was awarded the trophy outright. In 1987 the Muratti Trophy was auctioned by Phillips for £12,000. Bradbury Motor Cycles Bradbury Motor Cycles was a British motorcycle manufacturer based in Oldham, England and established in 1902. Originally involved in the manufacture of machine tools, sewing machines and cycles, their first motorcycles were bicycles with clip-on Minerva engines. The Bradbury factory went on to develop and produce a range of single-cylinder motorcycle, V-twins and horizontally opposed twins. The 1912 Bradbury