... Susp.fork Aluminium handlebar Lithium -ion battery 20" Folding Electric Bike - TDN20ZElectric Assist System SensorLiShui, ES-02, 1: 1intelligent Speed ... 100 kgs Specification Frame Set Frame20" R type folding E-bike, Six speeds, Aluminium frame, TIG welded W/battery bracket, ... foam, with double springs. SeatpostAluminum, 27.2*300mmL, blk Seat clamp QRAlloy clamp w/ QR blk Brakes BrakesRadius, F/R ...