Ambifirner 27.5 Inch Mountain Bike, 21 Speeds Thumb Shifter Front Suspension MTB Bikes, Carbon Steel Men Women Mountain Bike,Commuter City Adult Bicycles

<p>Bike Type:mountian bike</p><p>Age Range Description:fits height 5'3”-5'9” (162-180cm)</p><p>Frame Material Type:Carbon Steel</p><p>Handlebar Type:Flat Handlebar</p><p>Bike Shift Levers :Shifter Lever with Gear Indicator</p><p>Suspension Type:Front</p><p>Brake Style:Disc</p><p>Speeds:21 speeds</p><p>Rim Material:aluminum alloy</p><p>Included Components:toolkits，Assembly Instructions，reflector</p><p>Wheel Size :27.5 * 2.125</p><p>Frame dimensions (seat tube clamp to wheel center axis length):17.5 inch</p><p>load-bearing:250lb</p><ul><li>Tire Type Clincher</li><li><span style="color: rgb(102, 102, 102);">Main Color:</span>Black+Red, green</li><li><span style="color: rgb(102, 102, 102);">Product Style:</span>Classic</li><li><span style="color: rgb(102, 102, 102);">Use Case:</span>Garden &amp; Outdoor</li><li><span style="color: rgb(102, 102, 102);">Fitness &amp; Sports Function:</span>Multifunctional</li><li><span style="color: rgb(102, 102, 102);">Sport or Fitness Features:</span>Durable</li></ul>

• 【Durable Aluminium Frame】27x16 inch sturdy and durable Aluminium frame, provide safe and stable cycling experience. Ergonomically design, suitable for mens womens height  5'3”-5'9”, 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.
• 【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.