Keenso 36V E-Bike Twist Throttle, Handlebar Speed Controller, 6 Wires, ?For Most Electric Bikes?-- 36v Throttle Thumb 6 Wire is compatible for most electric bike, electric bicycle or mountain bikes with 22.5mm handlebar. Very adaptable?100% Brand New and High Quality ?Steady Sensitive?-- This E-bike Twist Throttle provides steady and sensitive control of speed, working well on the left or right side of handlebar ?Self-locking Switch?-- Equipped with a self-locking switch, 36v Throttle Thumb 6 Wire can be applicable to automatic cruise, low speed, high speed, and more other functions on the condition that you vehicle has such kind of controller ?Battery Capacity Indication?-- 36v Throttle Thumb 6 Wire supports battery capacity indication function, it can notice you that how much battery it leaves anytime and avoid the awkwardness that it is power off on the way ?Durable to Use?--The wires and interfaces are durable, and ensure low malfunction during the long time use. if you have any questions?Don't hesitate to consult us