Our Two-Stroke Pro-Packs are for first generation YZ125/250 and are a jam packed with factory style hardware for a full restoration of all body work, aluminum bushings, rotor bolts, a full set of sprocket bolts, Fuji lock nuts, and drain plug washers. Also includes all the external fasteners for the engine. Organized container includes a placement guide to ensure proper fitment. Fits YZ 125cc & 250cc years 2002-2021