If you have a Razor Crazy Cart XL you already know what a superb electric go-kart it is. Now you can keep it rolling along with this complete front wheel assembly for the Razor Crazy Cart XL. The Crazy Cart XL is the largest of Razor's Crazy Cart line. This wheel is for versions 5 and up, and uses a different chain sprocket from the earlier versions 1-4. This wheel is not compatible with the original Crazy Cart. These are the complete front wheel assemblies. You get a 200x50 pneumatic tire, an inner tube with an angled valve stem, the hub, rim, chain plate, and sprocket, as the axle and bearings.Note: Model versions can be determined based on the product ID code on your Razor product. The product ID code can be found on the battery cover and/or on the bottom of the frame. The 7th and 8th numbers in your product ID code are the version number of your Razor product (e.g. "01" = Version 1, "02" = Version 2, etc.)