Dirt 500 Dirt Jump BikeReady for the pump track and the dirt jump trails, but a whole load of fun anywhere you take it. Our tough aluminium frame is paired with 26" wheels, a tough and simple to maintain singlespeed drivetrain and kit that punches above its weight. Our new dirt jump and pump track bike won't break the budget or break, full stop. Built tough from 6061 aluminium, it's got 26" wheels and a singlespeed setup for bombproof reliability. Designed to deliver the