This is a optional CRC Large 1/12 Bumper and is intended for use with CRC 1/12 scale pan cars. This bumper is made from the same stiff, dense, durable foam material that the 1/10 scale bumper is made from. One advantage of this wider bumper is that it will help keep the body out of the front tires and will reduce front tire chunking, as well as protecting the chassis and body from damage. This bumper not only fits the CRC 1/12th cars but also many others like the 12R5.