s warranty, sent by express Controller:intelligent, 2 years warranty, sent by express Pas:790 panel Derailleur:shimano 3*7-speed gears Brake level:aluminum alloy Front brake:disc brake Rear brake:disc brake Front fork:aluminum alloy suspension Stem:aluminum alloy Throttle:no Mid tube:suspension Saddle:leather/silicagel Seat post:aluminium alloy adjustable Chain:anti-rust steel z51rb z7rb Pedal:aluminum alloy Tire:rubber tire Rim:aluminum alloy double wall Spoke steel:12g color diy Max. Speed:25km/h or 32km/h Max. Loading:capacity 125kg Assistance distance:60-70km Hard carton, 171*23*99cm, 70pcs/20'gp, 130pcs/40'hq