Compatible with Razor E200S, Razor E225S, Razor E200 V36+ ONLY Tire Size: 200×50 55 Tooth Sprocket Includes Axle, Brake Uses #25 Chain NOTE: Scooter versions can be determined by locating your bar code ID on the bottom of the scooter. 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. Product Description Compatible with Razor E200S, Razor E225S, Razor E200 V36+ ONLY. Replacement 8″ rear wheel assembly for the Razor e200, e200S, e225 Scooters (versions 36+). (200×50 Tire) Please know your scooter’s version number to make sure you are purchasing the correct part. See below on how to identify your scooter’s version number. IMPORTANT NOTE: Razor Scooter versions can be determined by locating your bar code ID on the bottom of the scooter/deck. 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 item.