1Wide Application: Suitable for electric bike, mini bike, pocket bike, replacement for EVO Electric Tricycle, replacement for East China Big Surfing. 2Metal Shell: The speed controller shell is aluminium alloy shell with groove design, protecting the inner circuit and good for heat dissipation to avoid thermal overloading. 3Battery Display: The throttle grip with lock is designed with battery display, can clearly show the power remains, makes it easier to see. 4Durable in Use: The superior wires and interfaces are durable, and greatly make sure low malfunction of long time use. 5More Convenient: Easy installation, and perfect fit for 1000W 36V brushed motor, but please pay attention to that Not for 3 phase motor. Item Type: Motor Brushed Speed Controller Material: ABS + Aluminium Alloy Handle Diameter: Approx. 22mm/0.87in Working Voltage: 36V Rated Power: 1000W Fitment: Replacement for EVO Electric Tricycle, replacement for Elderly Electric bike, replacement for East China Big Surfing 1 x 36V Controller 1 x Pair of Throttle Grip (Left + Right) 2 x Key