Item Type: Brushed Motor Controller Set Material: Aluminum Alloy, Rubber Weight: 518g/18.27oz Color: As Shown Throttle Twist Grip Caliber: Approx. 22.2mm/0.87in Controller: Rated Voltage: 36V Rated Power: 1000W Four Speed: Low Speed, Medium Speed, High Speed, OverspeedPackage List 1 x Brushed Motor Controller1 Pair x Throttle Twist Grip 1Premium Shell: Made of premium aluminum alloy for shell, which can prevent internal circuit, the brushed motor controller set has good heat dissipation so that can avoid thermal overload. 2Wide Application: The 4 speed throttle handle is suitable for electric bike, electro tricycle, electric motorcycle, a wide range of application. 3Rubber: The 1000w throttle twist handle is made of rubber, soft and comfortable, bringing comfortable hand feeling, you will feel not tired for long time riding. 44 Speed: The throttle twist grip has four speeds, that is, low speed, medium speed, high speed and overspeed, you can control it to meet your different needs. 5Wear Resistant: Owning to its material, the brushed controller twist grip is wear resistant, corrosion resistant, durable and can be used for a long time.