?Quality configuration? 20-inch ultra-light bicycle, double disc brake system, magnesium alloy one wheel, high carbon steel frame ?Low-carbon environmental protection? The bicycle is very suitable for outdoor fitness and sports training, weight loss, exercise the leg muscles, let you create perfect lines, create a comfortable sports and fashion life ?Lightweight and stylish? Quick folding, compact and lightweight, free to put into the trunk, non-slip tires and handles, comfortable and durable ?Note? If you have any questions after receiving the product, please contact us in time, we will try our best to solve the problem for you