Replacement complete rear wheel assembly for the Razor MX350 dirt bike (version 23 and up) and MX400 (version 19 and up). MX350 / MX400 Rear Wheel Assembly includes 1 rim, inner tube, tire, black disc brake assembly, sprocket, axle, axle spacers and nuts. IMPORTANT NOTE: MX350/MX400 bike versions can be determined by locating your bar code ID on the bottom of the frame or on the battery cover. The 7th and 8th digit in the series will tell you the version of your product: 01=version 1; 02=version 2; 09=version 9, and so on. Please be sure you identify your product version before placing an order for this rear wheel. W15128040188 Home | New Arrivals | Hover Boards | Quadcopters | Electric Scooters | Electric Bikes| Razor Scooter Parts | Scooter Parts | PS4 | Xbox ONE | iWatches / Gadgets | Shipping | FAQ | About Us | Scooter Laws | Returns | Shopping Cart