MOOSE OFFROAD TRAINING WHEELS UNIVERSAL - 9501-0139Adjustable and adaptable for riders skill level; terrain Sealed bearings and hardened fasteners CNC components for accurate fit Easily mounts to footpegs frame Wheels include grease fittings Step by step instructions 8" pneumatic 4 ply tires Patented design Solid steel axle Failure to use this apparatus correctly can result in serious injury or death. Only use Moose racing training wheels for the intended training purpose. This is only a training aid.