Dirt Bike Training Wheels Compatible with Honda XR50 CRF50 Z50 Z50R, Razor MX125 MX400 MX500 MX500, Yamaha PW50 TTR50, and Most 50CC 49cc Kids' Dirt Bike, Easy to InstallCompatible Models: Dirt bike training wheels compatible with razor MX500 MX125 MX400 MX500 honda CRF50 XR50 CRF50F Z50 Z50R yamaha PW50 TTR50 PW80 and other series of 50CC motorcycles, Please check the model number before you buy. Enhanced Safety: 50CC dirt bike training wheels are designed to provide enhanced stability and balance for beginners learning to ride. Dirt bike training wheels to reduce the number of children in learning motorcycle falls,