Specifications Parameter：Details Recommended Age：14-17 years (Height: 150-170 cm / 4'11" - 5'7") Weight：≈ 13.02 kg Frame：ROCKBROS Aluminum Frame Fork：Magnesium-Aluminum Suspension, 80 mm travel, adjustable preload & rebound, Lockout Handlebar：ROCKBROS Aluminum Saddle：ROCKBROS Youth Saddle Seatpost：ROCKBROS Aluminum Shifters：SHIMANO Altus M2000, 9-Speed Rear Derailleur：SHIMANO Altus M2000, 9-Speed Front Derailleur：None (Single Chainring) Brakes：Hydraulic Disc Brake (160mm rotor) Crankset：Prowheel Square Taper / 38T * 170MM Chainring / Aluminum Crank / Steel Teeth Tires：KENDA 26" x 2.0" Bike Length：170 cm Handlebar Height：95 cm Handlebar Width：62 cm Stem Height：7 cm Saddle Height：Adjustable 10 cm Package Dimensions：122*24*71 cm; 17.8 kg Please remove the protective film from the bike frame after assembly to prevent potential paint damage from long-term adhesion. Lightweight and Durable Build: The 26-inch mountain bike features an aluminum frame that combines lightness with stability. The thoughtful frame design and ergonomic geometry offer young riders a perfect blend of control, riding enjoyment, and reliability. Precise Control and Comfort: Ergonomic grips, an adjustable saddle, and a balanced frame geometry ensure a pleasant riding experience on longer distances. The internally routed cables and clean design appeal to sporty teens looking to combine off-road capability with everyday usability. Ready for Any Terrain: The suspension fork with remote lockout allows adjustment of preload and rebound. It absorbs shocks from roots, rocks, and jumps on technical trails. Combined with the 9-speed Shimano Altus system, it provides optimal efficiency on climbs and control on descents. Off-Road Challenger: The lockout suspension fork, adjustable in preload and rebound, reliably smooths out bumps from stones, roots, and jumps. Paired with the 9-speed Shimano Altus system, this bike masters both steep descents and uneven terrain while maintaining efficient pedaling. Perfect for Teenagers: Suitable for teenagers aged 14 to 17 with a height of 150 to 170 cm (4'11" - 5'7"). Ideal for young riders ready to take on new challenges during their weekend adventures.