Monster Motion HB3650-TYD6-FS Controller for the Razor MX500 and MX650

HB3650-TYD6-FS control module for the Razor MX500 (versions 21 and up), MX650 (versions 14 and up), and all versions of the EcoSmart Metro electric scooter. This controller is compatible with models that have a 6-wire throttle. This control module is not compatible with older models with a 5-wire throttle. Note: Model versions of your MX500, MX650, or EcoSmart can be determined based on the product ID code on your Razor product. The product ID code for your Razor vehicle can be found on the battery case 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. "03" = Version 3, "04" = Version 4, etc.). Compatibility: Razor EcoSmart Metro Razor MX500 Dirt Rocket Razor MX650 Dirt Rocket