Racing Motorcycle Royal Enfield is the creation of Bill Lomas, who won two World Championships GP350, speaking for the team Moto Guzzi.
This bike Bill did in the late 1940s. He used prewar rigid frame rear suspension which remade using a pendulum and dampers. In the heart of a motorcycle Bill installs a 250 cc engine, which he developed when he worked for Royal Enfield. Using this bike in 1948, Bill Lomas won the championship in the category Cadwell Park 250 blocks, and repeated the success in the 49th and 50th, respectively.
Royal Enfield 250 engine is developed and then improved by Bill. It is producing about 23 hp at 7800 rev / min. Improved version with two camshafts betrayed even more power. To end the 40th these figures were quite different.
In 1950, Bill took second place in Anstey, then won a race triumph in Brough, and repeated the success in Cadwell Park. As a result, he attracted the attention of Velocette, which offered a lucrative contract. Thus, the Bill had to put your garage in Enfield, though he sometimes gave other budding motorcycle racers.