26" Mountain Bike 21-Speed Folding Adult Bike Dual Disc Brakes Safety Gear Black Performance: Features a 6-speed Shimano

Performance: Features a 6-speed Shimano derailleur system suitable for city riding and light commuting

this bike delivers powerful performance

Anti-skid and Wear-resistant Wheels: Textured tread and burr can effectively reduce rolling resistance

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26" Mountain Bike 21-Speed Folding Adult Bike Dual Disc Brakes Safety Gear Black Performance: Features a 6-speed ShimanoDurable High Quality Carbon Steel Frame Built to last, this 26 inch mountain bike features a robust carbon steel frame with a durable painted finish, ensuring long lasting resistance to rust and rough terrains. 21 Speed Adjustable Gear System Easily tackle various terrains with 21 speed gears controlled by intuitive speed controllers on both the handlebar and the front rear wheels. Perfect for uphill climbs or smooth cruising. Customizable Height &