m100 electric bicycle 4.0fat tire 21 speeds 26 inch 36v 500w 13ah battery electric bike shimano speed beach e-bike for adult, Silver;blue

[large capacity battery]: 13an battery supports max speed: 30-35km/h, is equipped with a smart lithium battery charger for fast charging (4-6hrs), endurance mileage up to 30-40km. [3 working modes]: ebike & assisted bicycle & normal bike. with the lcd 5-speed smart meter button, you can choose the electric assist level according to your needs. [upgrade configuration]: professional 7-speedshift, 6061aluminum alloy frame, ,160 double-disc mechanical disc brakes at the front and rear,ipx5 waterproof performance, heavy-duty horns, and lights. [fat tire]: multi-terrain application, marble pavement, cement road, carpet, blind track, etc. durable in all condition road--more than safe, balanced, fast, and stable for your cycling. [complete after-sales service]with up to a 1-year warranty for the frame and 6-months for electric motor,battery,and the charger.we have confidence in our electric bike,and believe you would like it..syi