Feature:1. Durable and Lightweight: The aluminum alloy wheel drive is carefully processed to enhance the edge of the rim, making it lightweight and powerful.2. Noise Free Operation: The bike motor has a powerful load bearing capacity and comfort, providing a noise free riding experience, allowing you to fully enjoy your ride.3. Versatile Use: Suitable for DIY electric bikes, electric scooters, folding bikes, and more. Easy to maintain and install.4. Powerful Performance: The 48V500W rear drive motor provides strong power and stable acceleration, making your biking experience more enjoyable.5. Waterproof Design: The motor is equipped with a waterproof housing, ensuring its reliability and durability even in wet conditions.Specification:Item Type: Electric bike hub motorMaterial: Stainless steel, aluminium alloyWeight: Approx. 4050g / 142.9ozRated Voltage: 48V Rated Power: 500WPosition: Rear wheelType: Gear motorFork Open Gear(mm): About 142mmWaterproof: IP54Applicable Wheel Size (inch): 16in, 20in, 24in, 26in, 27.5in, 28in, 29in, 700C, etc.Spoke Holes: 36 holes.Package List:1 x Electric Bike Gear Motor