Features1Applications: The accelerator handle of electric bicycle can be matched with 2222.5mm handlebars, which can be easily installed on electric bicycles and scooters. 2Universal Voltage Applicable: Electric bike twist throttle handle grip is applicable to universal unlimited installation voltage, so you don't have to worry about its mismatch with your bike. 35 Color Wire Description: Red is 5V; Green is speed regulation signal, Black is GND; White wire is power input; Yellow wire is switch output. 4Durable: The cable and interface of the bike throttle grip are firm and durable, ensuring that there are few failures during long term use. 5Electric Bike Modification: With keys, this twist throttle grip is an ideal replacement set for mountain road electric bike. Made of durable ABS materials, suitable for a long term use.SpecificationItem Type: Electric Bike Twist Throttle GripMaterial: ABSGross Weight: 332g / 11.7ozApplicable Handlebars Diameters: 22-22.5mm / 0.87-0.89inWire Color Definition:Red: 5VGreen: Speed regulation signalBlack: GNDWhite: Power inputYellow: Switch outputPackage List1 Pair xTwist Throttle Grip2 x Keys