Professional Drive Train? – 21 speeds drive train is precise and simple to control, a wide range of gears gives you more control for climbing and room to get low on descents, corners and jumps. The brake system consists of a double disc-Brake, Ensures total control in every situation. Dual Suspension Bike? – These all-terrain MTB feature dual suspension. The thickened outer wall is more resistant to shocks. The shock absorbers help absorb shocks. The parallel bars can adapt to pressure road conditions. Greatly improve the comfort during riding and allows people to enjoy riding. Assemble Guidance? – This bike arrives 90% assembled, You need to assemble the front wheel, pedals, handlebars, seat and inflate the tires. If you have any doubts about the installation, you can check our installation video to help you, or take your bike to a local bicycle store for assistance, which may incur additional costs for buyers. 15KG LIGHTWEIGHT MOUNTAIN BIKE? -Constructed from lightweight aluminium, 27.5 inch folding bike for adult will get you uphill, downtown, and around your neighborhood faster and easier than ever, even with loads up to 120 kg. WEAR RESISTANT HIGH-QUALITY WHEELS? -27.5 Inch aluminium double wall rims with rubber tyres for comfort, stability and strength. FAST ASSEMBLY? : This bike comes pre-assembled to 90%. The assembly is quick and easy. Ex display, not in original box.