Aluminum Alloy Rim: The aluminum alloy rim is selected, and after fine processing, the edge of the rim is effectively improved, showing a light and high end atmosphere, strong bearing capacity and far superior to other types of bicycles 2. Scope of Application: 1500W rear hub motor kit can easily convert your bike to an electric bike, and is suitable for cyclists who like challenges. Good Riding Experience: The brushless hub motor has no noise, and you can fully enjoy the riding pleasure, providing you great riding experience. Current and Voltage: Maximum current 35+2A, rated voltage DC 36V 48V, speed setting 1-4.2V, rated current 17A, brake input is low level, low voltage protection is DC 30±0.5V, 40±0.5V. Use KT System: The whole kit uses the KT system, so you can’t replace parts when you carry the kit, because other parts can’t match our kit without using the KT system. Item Type: 1500W Rear Hub Motor Kit Material: Aluminum, Copper, PVC Maximum Current: 35+2A Rated Voltage: DC 36V, 48V Speed Setting: 1-4.2V Rated Current: 17A Brake Input: Low Level Low Voltage Protection: DC 30±0.5V, 40±0.5V Color: As Pictures Shown Weight: Approx. 11950g / 26.3lb. 1 x Controller Package. 1 x Thumb Throttle. 1 Pair x Brake Lever. 1 x Display Bracket. 2 x Display Screw. 1 x Display Manual. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. Post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.