Brushless Motor Controller X128-AXC002 48V 22A Suitable for electric bicycles, mountain bikes, electric scooters, etc. Please contact our online customer service before or after purchasing the controller to provide the label information of the original controller. Size: L119mm W52mm H32mm. Carefully study customer needs, according to the customer’s actual installation situation to provide a detailed, suitable solution environment. Try our best to meet the reasonable needs of customers. Keep close contact with customers during each business period. Co-operate with customers in a friendly manner to meet their needs with the best quality products. Train customers how to install and use the e-bikes for free. Perfect after-sales service to help customers solve problems in the process of using. Provide regular tracking service for customers. Please indicate your personal requirements such as colour, packaging etc. If you receive an item and are not satisfied, please contact me before returning it.