Features:21 Speed, Three Speed In Front And Seven Speed In BackDouble-kill disc brake system, more stable and reliableThickened shock-absorbing front forkHigh carbon steel material, strong and reliableComfortably cope with various road sections and has a good shock-absorbing effect.21-speed trigger shifters and rear derailleur provide effortless gear changes when riding up an incline or speeding down a declineSpecifications:1. Product Size: 26 Inches2. Cushion Height Adjustment Height Range: 780~990mm3. Gear Shift: 21-Speed (Front 3, Rear 7)4. Frame: High Carbon Steel5. Front Fork: Shock-Absorbing Front Fork6. Handlebars: Mountain Bike Handlebars High Carbon Steel Sand Black 620mm7. Stem: Aluminum Alloy Stem8. Front And Rear Brakes: Mechanical Disc Brake Aluminum Alloy9. Roulette: High Carbon Steel 24T*34*42T10. Shift Lever: Shift Lever11. Front And Rear Derailleurs: Front And Rear Derailleurs12. Front And Rear Hubs: Iron Hub 36H13. Flywheel: High Carbon Steel Domestic Flywheel14. Chain: Chain15. Pedals: Plastic Pedals16. Saddle: Mountain Bike Saddle Puv Pu Pp17. Saddle Tube: High Carbon Steel 28.6*300mm18. Quick Release: Aluminum Alloy Quick Release19. Car Ladder: High Carbon Steel Car Ladder20. Tires: Tires21. Front And Rear Reflectors: Front White And Back Red22. Wheel Light Sheet: White23. Weight: 16kgPackage Includes:1 x Mountain Bike — Made of high-strength carbon steel, this mountain bike can withstand weights up to 220lbs, ensuring stability and safety during rides. Equipped with a 21-speed transmission system, this 26in bike allows riders to easily handle various terrains and slopes for a smooth and enjoyable riding experience. — The thickened shock-absorbing front fork provides enhanced comfort and control, making your ride more stable and reliable. — With its black and red exterior, this mountain bike for man offers a stylish and eye-catching appearance, perfect for both urban streets and mountain trails. Suitable for riders from 5.4′ to 6.4′. — Assembly is quick and easy, the bike for teens and adults is 90% pre-assembled, so you’ll be ready to ride in no time.