NEW VERSION: This mid drive controller is a new version with reliable quality and compatibility. But before placing an order, you should confirm your controller version to make sure it can fit well. PREMIUM MATERIAL: Mid drive controller is made of premium aluminum material, lightweight, high hardness, not easy to damage, to ensure stable and reliable for long time use. EASY TO INSTALL: Mid drive motor controller, the wiring interface can be easily recognized, easy for you to better and quickly replace and install, so you can enjoy the fun of riding. LIGHTWEIGHT CONSTRUCTION: The overall design of this mid drive motor controller is lightweight, which will not add extra burden to your riding. Suitable for replacing old, damaged controllers. CONVERSION PART: Professional mid drive controller for electric bike conversion, suitable for riding enthusiasts to enhance the riding experience, with multiple guard features to ensure safe riding. Item Type: Mid Drive Controller Material: Aluminum. Newer versions of motor controller, you should confirm your controller version before placing an order.