Motorcycle racing has been around almost as long as there have been bikes. Riders have challenged each other, themselves, and even the elements — and succeeded.
Take a look at the history of board track racing in the US in this video:
Or go back a few more decades to watch a home movie of a motorcycle hillclimb event:
And another home movie, circa 1949, showing a race in Daytona. Since this was before the construction of Daytona Speedway, the race was held out on the beach: