Razor E200 Chain Drive Rear Wheel Assembly Complete Chain Driven Rear Wheel Assembly for Razor E200/E200S/E225 (V36+). Includes sprocket and band brake.**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. Tire Size: 200x50 55 Tooth Sprocket Axle Brake Uses #25 Chain