Unicycle

A unicycle is a vehicle that touches the ground with only one wheel. The most common variation has a frame with a saddle, and has a pedal-driven direct drive. Unicycling is practiced professionally in circuses, by street performers, and in festivals and as a hobby. Unicycles have also been used to create new sports such as unicycle hockey. In recent years unicycles have been also been used in activities similar to mountain biking or trials.