<P> For the 1911 Isle of Man TT , the first TT event using the Snaefell Mountain Course or Mountain Course , two separate races were introduced . The first event was a four lap Junior TT race and a separate Senior TT race for 500 cc single - cylinder and 585 cc twin - cylinder motorcycles , over five laps of the new 37.5 - mile ( 60.4 km ) Snaefell Mountain Course . The new technical challenges of the Mountain Course forced changes on entrants and motorcycle manufacturers alike . The American Indian motorcycle factory fitted a two - speed gearbox and chain - drive . This proved to be the winning combination when Oliver Godfrey won the 1911 Senior TT race riding an Indian at an average speed of 47.63 mph ( 76.65 km / h ) . Fitted with a six - speed belt drive Charlie Collier riding a Matchless motorcycle finished second in the 1911 Senior TT race and was later disqualified for illegal refuelling . During an early morning practice session for the 1911 Isle of Man TT races , Victor Surridge died after crashing his Rudge motorcycle at Glen Helen , the first death of a competitor on the Snaefell Mountain Course and the first death in the Isle of Man of a person in an automotive accident . </P>
<P> For the 1911 Isle of Man TT , the first TT event using the Snaefell Mountain Course or Mountain Course , two separate races were introduced . The first event was a four lap Junior TT race and a separate Senior TT race for 500 cc single - cylinder and 585 cc twin - cylinder motorcycles , over five laps of the new 37.5 - mile ( 60.4 km ) Snaefell Mountain Course . The new technical challenges of the Mountain Course forced changes on entrants and motorcycle manufacturers alike . The American Indian motorcycle factory fitted a two - speed gearbox and chain - drive . This proved to be the winning combination when Oliver Godfrey won the 1911 Senior TT race riding an Indian at an average speed of 47.63 mph ( 76.65 km / h ) . Fitted with a six - speed belt drive Charlie Collier riding a Matchless motorcycle finished second in the 1911 Senior TT race and was later disqualified for illegal refuelling . During an early morning practice session for the 1911 Isle of Man TT races , Victor Surridge died after crashing his Rudge motorcycle at Glen Helen , the first death of a competitor on the Snaefell Mountain Course and the first death in the Isle of Man of a person in an automotive accident . </P>
who won the isle of man tt senior race
who won the isle of man tt senior race
Oliver Godfrey
Oliver Godfrey