**20 Inch Boys Mountain Bike & 26 Inch Adult Mountain Bike - 21-Speed Steel Frame, Disc Brake, All-Terrain Commuter Bicycle for Men, Women & Kids - Perfect for School, Exercise & Outdoor Adventures**

Selling point:1. High-quality steel frame bicycle: It is equipped with disc brakes and 21-speed transmission system. The biggest advantage of high-carbon steel frame is sturdiness and durability, and high cost performance.2. pedals are included in the package: "L" or "R" is engraved on its pedal shaft. The L marked pedal should be s-crewed into the left crank arm, counterclockwise, and clockwise. The pedal marked with R should be s-crewed into the right crank arm, clockwise, and counterclockwise.3. The bicycle has a 21-speed gearbox system: the correct use of the gearbox can cope with c-omplex road conditions and weather such as flat roads, up and down slopes, dirt roads, and wind.4. High-quality tires: It can effectively reduce unnecessary bumps caused by uneven road surface during riding, greatly reduce fatigue caused by riding vibration, and improve riding comfort. Easy to ride, ready for outdoor fun5. The SHIMANOS rear derailleur with index is combined with the micro- twisting gear lever, which can provide 21 speeds on demand for uphill climbing, downhill riding or p-ure acceleration; detachable rear derailleur guard Cover ensures the consistency of gear operationProduct parameters:Product gross weight (kg/lb):17kg/37lbsProduct net weight (kg/lb): 16kg/35lbsProduct size (cm/in): Vehicle length: 170cm/67in, height 92cm/36inPacking size (cm/in): 134x72x19cm / 52x28x7.5inBrake type: disc brakeLoad capacity (kg/lb): 100KG/220lbWhether it is foldable: noTransmission type: 21 speedFrame material: high carbon steelSuggestions:1. Approximate height of seat adjustable: 75-90cm/29.5-35.4in2. Applicable height range: 160-185cm/5.2-6ftProducts include:1x bike1x manua1x parts package

??【High-strength Steel Frame】Mountain Bikes Are Made Of High-quality High-carbon Steel Materials With High Hardness And Superior Performance. They Are Very Suitable For Outdoor Cross-country And Urban Commuting.

??【All-terrain Tires】All-terrain Wide And Multi-s-ection Mountain Tires Are Mounted On Lightweight And Durable Alloy Wheels To Increase Stability.

??【Unique Feature】26 Inches fashion rims more s-afe and fastness. The 21 speed function gives you the option to cruise or punch It in high gear and the Double Disc Brake lets slow down quickly.

??【Fashionable & Advanced】Full Suspension, Shimanos Derailleur. pedals and comfortable seat include in packages.85% Of The Products Are Pre-assembled, Easy To Assemble, And Necessary Assembly Tools Are Provided.

??【Perfect Gifts】Our MTB bike is ideal for everyday rides to school,work or a cross country ride.It’s a perfect gift to send your friends who like outdoor sports, which is suitable for both men and women. It’s fashion and s-afe,so we’re sure your friends or you will like it very much. If you have any questions, please feel to contact us, we will provide the most s-incere service for you.