This item is 100% brand new Ecotric folding 20" fat-tire e-bike 500w electric beach snow bicycle, removable 36v 12.5ah lithium battery, 500w rear power motor. 2.0 and times, 4.0 inch fat tire, multi-function 810 led display, aluminum alloy bike frame. Mechanical front and rear disc brakes. With Shimano external 7 speed, twist throttle to use it.