41mm (controller)

After the blue limit line is connected, the is limited. Suitable for3 5A 36V/48V/52V 1500W electric bike/scooter motors. Suitable for 36V 1500W / 48V 1500W / 52V 1500W brushless motor. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.