250 Watt Hub Motor & Front Wheel Assembly for GOTRAX GXL V2 & XR Elite Electric Scooters (Blemished) X Treme X 650 Suitable for use on Gel EXOOTER M6 Suitable for use on Gel Cell and AGM sealed lead acid batteries of size 15 Ah or larger the roller weights "slide" inward and outward in the Movable Drive Pulley (MDF) to change extend the gear ratio The 250 watt hub motor and front wheel assembly for GOTRAX GXL V2 and XR Elite electric scooters is an 8 7 8" diameter self contained drive system with no additional wiring to install The hub motor wheel assembly is an old idea that is enjoying a new renaissance of popularity with scooters such as the GOTRAX GXL V2