my mates got one with a fireblade engine in it, we crashed the first day he had it! we were going down a country lane and the council had put a mini roundabout in we approached a little quick cause we werent expecting it got half way round it thought we had managaed to avoid crashing n the back end got away from him he caught it but clipped the edge of the roundabout sending us into a load of cones which got stuck in the steering!