Specification Model No. Y20 Color Black / Grey Frame Steel Motor 48V 500W ( mark 48V 250W） Fork Suspension fork Charger 54.6V 2A Tire 20*4.0 Charge time 7.5h Derailleur Shimano 7s RD-TY21-B-SS Display LCD Rear suspension N/A Controller XGS 20A Brake Zoom Hydraulic brake Battery 48V 15Ah Chain KMC Light Front / Rear Crankset 52T Mode 15-20-25km/h Shifter Shimano SL-TX50-7R Max Speed 25km/h Freewheel Aluminum, 13-28T Milage 90-100km Fender F/R Max Load 120KG Rear rack Optional N.W / G.W 40kg/48kg Sensor Speed Sensor Product size 1660*670*1150mm Suitable height 175-190cm Carton Size 1420*310*840mm