This rear bumper is designed to protect the rear of the chassis, the motor and the body, all while still allowing the use of a stock TRA Wheelie Bar (TRA #3678 - not included). Additionally, if you decide to run without the Wheelie Bar, our rear bumper is so versatile, it'll adapt and allow either configuration. This rear bumper for the Stampede 2wd consists of a scale bumper that uses design elements from many of today's top full-scale bumper manufacturers. The RPM bumper supports are designed tough, with serious impact absorption characteristics built inch With the use of an RPM Rear Bumper Mount (RPM #80902 or #80905 - not included), the protection for the motor becomes nearly indestructible! Each RPM Rear Bumper is made in the USA from our engineering grade nylons and is backed by our limited lifetime warranty against breakage.