Replacement Razor Chain Tensioner for the following Razor electric scooters:
E90 (all versions)
**NOTE: Razor Electric Scooter/Bike versions can be determined by locating your bar code ID on the battery cover and/or on the bottom of the scooter/bike frame. 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 version before placing an order for a chain tensioner.