Features: The controller shell is made of aluminium alloy with design, which can protect the inner circuit due to good heat dissipation feature to avoid thermal overloading. This product is a brushless motor controller, it can provide steady speed and sensitive control of braking and direction changes. The wires and interfaces are durable, and ensure low malfunction of long time use. The cables have different colors for your easy installation. Suitable for electric bicycle, scooter, etc. Specification:Condition: 100% Brand NewMaterial: Aluminum alloyColor: as pictures shownBrake: V brake/disc brakeController: 36V/48V universalSuitable for 1000W 1500W motorMotor mounting opening: the front drive opening is 100mm, the rear drive opening is 135mmPackage list:1 x Brushless Controller