RPM HD Wheelie Bars are designed to add the versatility of a wheelie bar to RPM81802 HD Wing Mounts (sold separately). The RPM HD Wheelie Bar design bolts directly to our HD Wing Mounts exclusively. These wheelie bars add much needed wing protection during those nose high moments when your throttle finger gets a bit overzealous! Now any ARRMA 6S owner can pull some sick wheel stands without the fear of grinding the wing into dust! Do you already have a set of stock ARRMA #320366 Wing Mounts? You have the option of using the wheels and rocker posts in that kit with RPM HD Wing Mounts. They're cross-compatible! If you don't have that kit, there's no need to worry. We include a sweet set of 5 spoke wheelie bar wheels in our kit. Naturally, RPM HD Wheelie Bars are sold with with all necessary mounting hardware and complete instructions for assembly. RPM HD Wheelie Bars are manufactured from our trademark blend of incredibly strong nylons. We then back our parts with a limited lifetime warranty against breakage. Tech Notes: RPM HD Wheelie Bars are designed for use with RPM81802 HD Wing Mounts exclusively and will not work with stock or other aftermarket wing mounts. Vehicle fitment is limited to vehicles compatible with RPM81802 HD Wing Mounts.