1、Application: The twist throttle grip is suitable for electric bikes and scooters, fits most electric bikes with hall sensor controller. 2、Universal Type: Regardless of VRLA, lithium batteries, water batteries, dry batteries, regardless of various types of electric vehicles, 12V‑99V electric vehicles can be used. 3、2.3cm Diameter: The twist throttle grip handlebar is 2.3cm and it is easy to install on the 2.3cm / 0.9in diameter handlebar. 4、Plastic Material: Adopting high quality plastic material, the twist throttle accelerator is anti impact and durable in use. 5、Common Wiring Method: The green wire is the thumb throttle hall signal wire, the red wire is the thumb throttle positive 5V, and the black wire is the negative. Please be sure to check the wiring of the controller's function wires. You cannot simply check the color of the controller. Once it is connected incorrectly, it will cause damage to the controller or the throttle. 6、5 Core Wires: The blue wire is connected to the outlet wire of the controller switch lock, and the yellow wire is connected to the positive pole of the power supply of the controller switch inlet wire (power switch, which controls the power supply of the whole vehicle). Item Type: Twist Throttle Accelerator Grip Model: S series Material: Plastic Twist Throttle Grip Diameter: Approx. 2.3cm / 0.9in Product Weight: Approx. 326g / 11.5oz Efficiency: ≥98% Hall Level: Linear Hall 1 x Handlebar Grip 1 x Twist Throttle Grips 2 x Keys