Omelaza 700C 21 Speed Gear Shift Lever with 3 Chain Wheel for Mountain Bike Road Bike Fixed Gear 21 Speed Bicycle Red

• 700C wheel: The wheel size is 700C, which is suitable for children, teenagers, and adults. The wheel size is larger than 622C, providing a more comfortable riding experience. 21-speed transmission system: The transmission system has 21 gears, allowing you to switch gears smoothly and effortlessly. The gear change is simple and convenient, making it suitable for various terrains, such as flat roads, hills, and mountains. High-quality materials: The frame is made of high-quality aluminum alloy, which is lightweight, strong, and durable. The seat and handlebar are ergonomically designed, providing a comfortable riding position for long-distance riding. Strong braking system: The brakes are made of high-quality materials, providing strong and reliable braking performance. The front and rear brakes are equipped with disc brakes, which are more effective and safer than traditional brakes. Ergonomic design: Omelaza road bike is designed with an ergonomic design, making it more comfortable and efficient to ride. The seat is designed with a soft cushion, providing a comfortable riding experience for long-distance riding.