vivi folding electric bike, 350w electric mountain bike 26'' e-bike, adults ebike with 36v 8ah removable battery, professional 21 speed electric bicycle, full suspension electric bike for adults vivi <p>electric bikes amplify your pedaling power and your ability to do and see more. vivi e-bikes make more possible. they're quick and smooth, with predictable, easy-to-control power and a long-lasting removable battery that recharges at any household outlet. it gets you outside, reduces fossil fuels, reduces congestion, and it's fun. <br> <br> specification: <br> frame material: aluminum alloy <br> wheel diameter: 66cm/26inch <br> motor: 350w <br> voltage: 36v <br> maximum speed: 20mph <br> load capacity: 150kg/330 lb <br> torque: max 50nm<br>seat height: 83cm-93cm/32inch-37inch <br> mileage range: 35km-40km/22mile-25mile <br> full length: 170cm/67inch <br> whole height(from handlebars): 100cm/39inch <br> handlebars length: 65cm/26 inch <br> fit height: 160cm-190cm/62inch-75inch <br> suspension type: full <br> lithium battery: 36v 8ah <br> tire: anti-slip resistant thick tire <br> fender: yes <br> charging time: 4-6 hours <br> motor: 350w high speed brushless gear motor <br> display: led 3-speed smart meter button <br> gear shift system: 21-speed transmission system <br> brake system: front-wheel and rear disc brakes <br> bicycle weight: 27kg /60 lbs <br> <br> package content: 1 x electric mountain bike (with the battery and accessory)<br> </p>