Product Features 【Durable Steel Frame】27x18.8 inch sturdy and durable steel frame, provide safe and stable cycling experience. Ergonomically design, suitable for mens womens height 4'8 -5'6 (56-66”), max weight is up to 250lbs. 【21-Speed with Disc Brakes】Grip 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 Absorber】These all-terrain MTB feature shock-absorbing front and rear shock absorber. Dual shock absorbers provide double shock absorption effect, allowing you to ride smoothly and comfortably. The parallel bars can adapt to pressure road conditions. 【27*2.125 All-Terrain Tires】Made of high quality rubber, all-terrain tires with strong puncture ressistance soften the bumps and stick to the Dirt, Trail, Gravel, Paved Path for a smooth, stable ride: strong grip, have a super excellent anti-skid function and is not easy to slip. 【85% Pre-Assembled】The bike comes 85% pre-assembled. You need to assemble the handlebar, saddle, front wheel and pedals. After a short adjustment of the brakes and gears you can start riding immediately. Please note that if you have any questions, you could contact our customer service first. Main Color:Gray Main Material:Steel Use Case:Garden & Outdoor Bicycle type Comfort Bikes Brand Unbranded Height range 4'8 to 5'6 Frame material Steel Wheel size 27.5 in Color Gray Speeds 21 Age group Adult, Child Suspension Full Suspension Brake type Disc Brakes Max load 250 lb Handlebar type Handlebar Weight 50 lb Drivetrain 21-Speed Assembly req N Gender Unisex Has written warranty No Assembled product height 39.7 in Bicycle tire size 27*2.125