Hosted on MSN1mon
Motorcycle Engine History: From Steam To Stroke, A Look At This Technology's EvolutionRoper's "velocipede" arrived in 1869. The hickory-framed bicycle powered by a twin-cylinder steam boiler was operated by twisting a throttle mounted to the handlebar — a convention so pure it ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback