The Crazy Bikes are great entertainment for children at any event. The Crazy Bikes have to be used on a grass area approx 25m x 20m, which is coned off to make a Crazy Bike track. All the Crazy Bikes have an off centred wheel, either on the front or back. This makes the Crazy bikes go up and down, which is fun to ride. The Crazy bikes are great if you are looking for different entertainment at your fun day or event.