Tyethy 27.5 inch Mountain Bike, Adult Mens Bike with 21 Speed & Disc Brakes, High-Carbon Steel Frame Bicycle, Gray

27x17.5 inch sturdy and durable steel frame, provide safe and stable cycling experience. suitable for mens womens height 5'2"-5'9", max weight is up to 250lbs. Mechanical dual disc brake system, simple structure and convenient for maintenance. Feature 100mm front suspension fork. 27.5*2.125’ All Terrain One Piece Wheel 85% pre-assembled,easy to assemble