Product: Electric Bicycle Tire Size: 20"x1.75 Motor Type: 180W-250W DCfront hub Motor Brushless 1:1Pedaling assistant system(PAS) Battery : 24V 8Ah/10Ah li-ion Charger: AC110V-220V.50HZ-60HZ 1.8A Charging: 4--7h Max speed: 25km/h Mileage: 30--40km Max load: 100kgs Frame: Alloy Rims: Aluminium Alloy 20"x36H Shifter: Shimano 6 Speed Brake: front&rear V-brake N.W/G.W: 2 2kg/25kg Expanding Meas: 165x50x88cm Packing Measure: 85x34x60cm Color: silver,bule,red,black,yellow. Container: 115pcs/20' 265pcs/40HQ