CT-312C1-3 Control Module with 5-Wire Throttle Connector for Razor MX500 (Versions 10-20) PaceSaver Scout Boss 4.5 and comes with the matching

and comes with the matching left grip

or in a smaller Pediatric version

WTB: W010-0821

Pride Mobility: DRVASMB1977

25" Black Freestyle Kontact bicycle tire

CT-312C1-3 Control Module with 5-Wire Throttle Connector for Razor MX500 (Versions 10-20) PaceSaver Scout Boss 4.5 and comes with the matchingControl module for the Razor MX500 Dirt Rocket, versions 10 through 20. Compatible with models that have a 5 wire throttle. This control module is not compatible with older models with a 4 wire throttle. 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