1.20inches 2.Lithium battery 3.Aluminium alloy 4.250W electric bicycle 5.Model:TDN23-11Z 20inches, 250W, Lithium battery, Aluminium alloy, electric bicycle TDN23-11ZMotor :Geared brushless motorWheel diameter : 20 inchesWeight:24kgRated load :100kgMax speed : 25km/h Full charge endurance : over 50kmBattery : 36V/10Ah (Lithium battery)Power : 250WCharger’s input voltage : 110V-240V ACRecharging ...