This 21-speed mountain bike is designed for versatile riding. Its streamlined high-carbon steel frame and full suspension system make it perfect for both mountain biking and commuting. It's also equipped with the Polly dual-disc brake system, factory-calibrated for both shifting and braking. The brakes feature manual cable tension adjustment for secure handling. The drivetrain features a 7 tower wheels and thumb shifter, and the chain drive, coupled with 26-inch spoked wheels and aluminum alloy rims, provides a stable and efficient ride. The seat is height-adjustable and easy to install, making it easy to embark on a versatile cycling adventure.