Feature:1. Technology: Selected and processed by fine technology to effectively enhance the edge of the wheel , which is light and high end feel, with strong bearing capacity and comfort far more than other types of motor, realizing noiseless operation and allowing you to fully enjoy the fun of riding2. Material: Made of high quality metal with flute design, it protects the internal circuit from thermal overload due to its excellent cooling function3. Functions: With a variety of functions, can be used as a driving computer, and control the entire electric bicycle system after conversion, compatible with 36V and 48V voltage; Color display makes it easier to view data on the panel, such as remaining battery, current speed, average speed, maximum speed, clock, total one way distance, guaranteed cycling mileage4. Suitable for: Suitable for bicycle lithium modification, DIY electric bike, electric bike, electric scooter, folding car, etc.; Easy to maintain, electric bike mop bike mountain bike conversion motor, high efficiency, greatly improve the fun of riding, suitable for cyclists like challenges5. Available: 5 rings spoke sizes are available. 20in rims spokes, 24in rims spokes, 26in rims spokes, 27.5in rims spokes, 28 /29in rims spokes and 700C can be shared.6. Control and Setting Functions: Power Switch Control, Headlight Switch Control, 6km / H Inching Control, Wheel Diameter Setting, Maximum Speed Setting, Idle Automatic Sleep Time Setting, Backlight Brightness Setting, Voltage Level Setting and Pas Connection.7. Display Functions: Speed Display, Boost Level Display, Power Indicator, Fault Prompt, Total Mileage, Single Mileage, Headlamp Display and Single Driving Time DisplaySpecification:Item Type: Electric Bike Conversion KitMaterial: Stainless Steel , Aluminum Alloy , PlasticCommodity Size: Controller Box Approx. 8 x 5 x 3cm / 3.1 x 2 x 1.2in, Instrument Approx.11 x 6cm / 4.3 x 2.4inMotor Type: Front