Mounts to foot peg frame bracket for the best strength and durability Specifically designed with wheel spacing tolerance on the axle to corner better and absorb terrain impact. 5/8″ Solid Steel Axle with CNC machined & stamped components for accurate fit. Step by Step picture installation instructions and online video Now young children can ride on most entry-level motorcycle with the proven Universal Trainer by Hardline Products With our Universal Trainer you can adjust the wheel height and mounting position for your type of riding terrain as well as rider’s skill level. As the rider gets better raise the wheels incrementally higher until balance is achieved. The Universal Trainer is truly “one unit” that meets the demands of the training wheel market, for most types of entry-level motorcycles. Installation is easy because our Universal Trainer mounts to any 50cc motorcycle. Inclusive directions and video walk-you through assembly. Our Universal Trainer mounts under the foot pegs for the best balance, strength and durability. The Universal Trainer will give children quality “seat time” to develop important riding skills while offering parents complete confidence and satisfaction. The greatest attribute of the Universal Trainer is just that, it is “UNIVERSAL”. Now you don’t have to worry about which motorcycle they ride just as long as it is a 50cc entry-level motorcycle you are good to go…go have fun!