Mens Mountain Bike 27.5-Inch Wheels, Aluminum Frame, 21 Speed Thumb Shifter, Front Suspension, Dual Disc Brakes Women Adult Bicycles Black-White w/mudguards, Bike Lock, Air Pump

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Durable & Strong: The bike is 27.5 inch Wheel, has an aluminum wheel frame and a front suspension fork with elasticity, toughness, as well as impact resistance, which can absorb collisions and bumps, providing you a smooth and easy riding experience for men or women
21 Speeds: The bike with 21 speeds on-demand for uphill Climbing, downhill riding, or pure acceleration. Allow you to switch through the gears very quickly with thumb shifter, so you can select an appropriate speed and provide consistent response in both uphill and downhill driving
Double Disc Brake: Using the front and rear mechanical disc brakes, you can choose any speed with perfect brakes, riding safe in mud, creeks, sand, road with ease
Unique Tire: Spoke tires with front and rear mudguards has good toughness, elasticity and impact resistance. Because the spokes with high elasticity and high toughness are connected to the hub along the tangential direction, the external impact force is buffered and dispersed by the spokes, making the hub receive instant impact Weaken
Size: 27.5inch bike is suitable for everyday rides to school, work or a cross country ride, and for people with 160cm-188cm height or unexceed 120KG wight. Assemble the remaining 20% by yourself. Includes all the tools you need for installation and maintenance, please refer to the user installation manual