Razor E-300 Rear Wheel Assembly_V41+ Rear Rear Wheel Assembly for the E300, Versions 41+. Includes rim, 2.80/2.50-4 tire and inner tube, bearings, brake assembly, chain sprocket, axle, axle spacers, and nuts. Please Click Here for a guide on how to identify which Razor version you have. Includes: 2.80/2.50-4 Tire & Tube Freewheel Hub Axle Adjusters & Axle Sprocket: 55 Tooth Band Brake Assembly