Specification QX-04-08C Weight capacity: 200kg Rear wheel size: 16"?.5" Battery: 12V38AH? Controller: PG Motor: 24V/320W? Gross Weight: 90kg Net weight: 82kg Unit battery weight: 12.75kg Carton dimensions: 790?80?10mm Range: 40km Incline capability: 12degree Forward speed: 9km/h Backward speed: 6km/h