Razor E100 Twist Throttle & Controller Electrical Kit - E100 / E125 (V10+), E150 (V1+), eSpark
COMPATIBLE ONLY WITH: Razor E100 - E125 Versions 10 and up, E150 Version 1 and up, and E175 Version 18 and above
Model versions can be determined based on your 8-digit Barcode ID. The Bar Code ID can be found in many places including the battery cover, on the bottom of the frame, charger, stem and/or box. The 7th and 8th digits are the version number (e.g. "09"=version 9, "10"=version 10, etc.)