Enhanced Motor Speed Controller for Electric Bike Motor (48V 72V 1500W). 48V-72V Electric Bike Sine Wave Split Intelligent Motor Speed Controller 1500W. Perfect replacement for the old or damaged. Suitable for electric bicycle. The controller can only be connected to the LCD display of the SIF protocol. Powerful start, climbing power large and small motor noise. Brand new and high quality. Made of high quality material, durable and practical to use. Color: Black (As picture show). Applicable display: SIF protocol Display. Material: Aluminum alloy + ABS. Size: about 17.894.9cm. 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. Please allow slight manual measurement deviation for the data. Please kindly note that. Also, the each additional item means. The the same color and size. Transit time may be a little delayed because of the. If you have any questions.