... detailed description: MotorBrushless,2500wEfficiency90%~95%BatteryPortable 40ah lithium battery Max speed55km/hMax torque100NmClimbing ability25%Range80kmsBrakeFront: disc Rear: ... 3.5-10G.W./N.W.100/80kgs(battery excluded)Loading <=150kgsPacking size(mm)1760*690*1160CONTR ... . adjustable shock absorber (Taiwan Brand)6. fast pace battery charger7. clean,energy efficient,low. maintenance,zero emissions, ...