Dirt Track Racing is similar to Track but with subtle differences. Dirt Track is conducted on closed tracks of various shapes which differ in length from 275m to 1800m and they have both left and right-hand turns. There is competition for dirt track sidecar riders and quad bikes as well. The surface at Mick Doohan Raceway is graded dirt. All you need to get started is a Motocross bike or more specialised Dirt Track machine called a slider, and the appropriate riding gear.