Product description Flexible Motor & Shifter- Powerful 350W motor helps you reach 22 mph with ease(Rider weight15 mph at PAS 0/1 or going downhill without energy consumption, PASELEC Power Regeneration allows your bike to have 60 to 80 miles, optimizes the efficiency of the ECO system and extends the lifetime of battery and motor. Smart LCD Screen with LCD backlight, Speed Limit can be set, Password-protected. Bike Configuration- 85% pre-assembled. It's not difficult to finish assembly by yourself---Watch video instruction. We pay great attention to every detail of each component, ergonomic handlebar, adjustable seat, thumb throttle and leather grip. The Headlight will Automatically Light Up at night. Just enjoying a long time travel, and also exercise. With one-year service for the electric motor, battery and the charger, you've no worry about using it. Hydraulic Brakes EBIKE锛? Speed Electric Mountain Bike 锛孋ruise Control Electric Bicycle Power Regeneration EbikeCustomized Mountain Electric Bikes website:http://www.paselecbikes.com/mountain-electric-bikes/