Mountain Bike 27.5 Inch Wheels, 21-Speed Mens Womens Trail Commuter City Mountain Bike,High Carbon steel Frame Disc Brakes Thumb Shifter Front Fork Bicycles

【Durable Steel Frame】27x17.5 inch sturdy and durable steel frame, provide safe and stable cycling experience. Ergonomically design, suitable for mens womens height 4'2"-4'9", max weight is up to 250lbs. 【21-Speed with Disc Brakes】Thumb shifter help to switch gears with smoothness. Simple operation allows for quick selection of gears for various terrains. Mechanical dual disc brake system, simple structure and convenient for maintenance. 【Front Fork Shock Absorbing Design】Feature 100mm front suspension fork. The thickened fork help resistant and absorb shocks. The parallel bars can adapt to pressure road conditions. Greatly improve the comfort during riding and allows you to enjoy riding.