Dirt jumping can be done on almost any vehicle with wheels, but it is usually executed on a dirt jump bicycle. According to wikipedia dirt jumping is one of the names given to the practice of riding bicycles over cement type jumps of dirt or soil and becoming airborne. The idea is that after riding over the ‘take off’ the rider will become momentarily airborne, and aim to land on the ‘landing’.
Loaded With most robust frames and components and mostly 24 or 26-inch wheels, these bicycles are designed to fly. Jump bicycles are strong enough to withstand a hard impact. They are fitted with front suspension forks to cushion the blow.
Seats sit very low to minimise body contact on landing. Often single-speed only to minimise weight and maximise acceleration prior to jump. Good brakes fitted to enable rider to control bicycle following a successful jump.