Wheel Size:20” Motor:250W Geared Brushless motor With pedaling assistant system(PAS) Battery:24V,8AH Nick Metal Hydrida /36V 10AH Lithium Lron Max range:30/45KM Shifter:Shimano 6-Speed Brakes: Front& Rear V-brake Weight: 23.5KG Packing Size:88X50X67cm