VIVI Electric Mountain Bike is equipped with 500W motor and 48V/10Ah Battery and 27.5" wheels, featuring more brilliant max. speed, range and hill-climbing power than other average bike. This ebike is great for commuting, cursing and short-distance travel. With all the thoughtful bike detail design: LCD display, comfortable saddle, shock absorption, it will provide a great riding experience for you. Main Feature: 500W Powerful Motor: this electric bike is equipped with powerful 500W brushless motor, which make it perform more brilliant than the  average bike in terms of maximum speed and hill-climbing power. This ebike can provides more than enough to power your daily commute, a cruise on the mountain, or a meander along your favorite trail. With speeds up to 20 mph. 48V/10Ah lithium ion Battery: with 48V/10Ah battery, this powerful bike can reach a range of up to 25-30 miles when riding with full power or 30-45 miles when riding in assisted mode. Also, the battery can be take out to charge convenient. 27.5in Big Wheel: This mountain bike equipped with 27.5 big wheel, which make this bike more suitable for commuting and cruising. The bike frame is made of quality Aluminum Alloy, featuring durable and lightweight. 21-Speed Shimano Gears: the Shimano 21-speed shift system allows you to climb any hill effortlessly and distribute energy more rationally. 85% Assembled Bike : We provide tools, user manuals, and videos so that you can assemble the rest and ride on the road. VIVI Electric Bike Details: Frame:  Aluminum Alloy Brake: Dual disc brakes 3 Riding Modes: Normal Mode, Assisted Bike, E-bike with Adjustable Handlebar & Horn & Headlight PVC mudguards Shock Absorption: High strength steel fork Saddle: Memory foam saddle Cable: Waterproof integrated Rims: Aluminum double-walled rims Updated LCD Display shows battery life, mileage, speed, assist level Specifications: Transmission: Shimano 21-Speed Motor: 500W  Battery: 48V/10Ah Maximum Speed: 20MPH Range: 25-40Miles Charge Time:4-6Hours Max Load: 330lbs Product Weight:62 Lbs Seat Height:31.5-41.7inch(Adjustable) Wheel Diameter: 27.5inch Assembled Size: 73x27x40.6inch Package Content: 1 x Electric Bicycle (Battery and Bike Accessories Included) 1 x Charge 2 x Keys 1 x Tools Kit 1 x User

• Larger Capacity Battery: The 48V/10Ah lithium ion battery is super-secure while riding but easy to remove, and can be charged at any household outlet on or off the bike.
• Ride Safer For Night Rides: A large and powerful centered headlight is perfect for night rides. Anti-skid anti-vibration tires, wear-resistant anti-skid tread and good quality shock absorber to help you unimpeded.
• Good Transmission System: 21-Speed gears increases stronger hill-climbing power, further range variation. Front and rear disc brakes provide powerful, progressive braking even in rainy conditions.