The Diamondback Mountain - Response Sport Bike is a high-quality mountain bike with a steel frame, Rock Shox front suspension, and adjustable seat. It features a 21-speed gear system, making it ideal for tackling rugged terrain. The medium-sized frame is designed for a comfortable ride, while the 22-inch wheels provide stability and traction.Includes cable lock and tool pouch under seat. This sporty blue bike from Diamondback is perfect for tackling tough trails and enjoying outdoor adventures.