Brand new 26 Inch Mountain Bike, 7/21-Speed/High-Carbon Steel/Aviation Grade Frame, Dual Disc/V Brake, Adjustable Ergonomic Seat Bicycle Unmatched Drivetrain: Seamlessly switch between7 speeds for an unparalleled roading experience. Aviation-Grade Carbon Steel Frame: Enjoy the ultimate in durability with a carbon steel frame, providing a perfect balance of strength and lightweight design. Safety Redefined: Navigate any terrain confidently with V-brakes, anti-slip tires, and a lock-out suspension fork for instant responsiveness. Tailored Comfort: Find your perfect riding position with adjustable handlebars and an ergonomic seat cushion, catering to riders between 5.3' to 6.2'