Motorcycle Speed Controller 3500W Electric Skateboard Motor Speed Controller. This brushless electric bike motor controller is made of metal, which is sturdy to use. With grooved metal shell provides good heat dissipation and high temperature resistance ability, protect the internal circuit and avoid thermal overload. Brushless motor controller allows steady speed and sensitive control of braking and direction changes. Quality wires and interfaces provide great contact performance, efficiency and more energy-saving. Suitable for most brushless motors of electric scooter, electric skateboard, e-bikes and etc. 223x110x50mm/8.78inchx4.33inchx1.97inch. 1 Piece Brushless Controller with Wiring Harness. Please allow slightly error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Wish you a wonderful online shopping! Please pay what you win in 7 days. Because the unpaid dispute will not be closed automatically, and we may ignore it. Please verify your address during checkout. We are not responsible for any wrong or undeliverable addresses. We are committed to give you the best customer service possible. Please let us work on the issues. We’d like to settle any problem in a friendly manner. Due to the difference of time zone between Hong Kong and your location, sometimes the answer will be delayed. It’s just take you 1 minute. People always bought together with.