The Z3-160 is the most powerful Stomp pit bike in the range. Packing 17hp at the rear wheel, this is a serious bit of kit and not for the faint hearted. Comes with big 17/14 wheels.

The ZS155 engine, although more expensive, has proven to be as reliable as its smaller YX140 counterpart. It also boasts the upgraded SDG2 frame and the Detroit plastics, as well as the updated PRO foot pegs and polished hubs.