Electric bicycle

Size: 170x66x109cm battery specification: 12V20Ahx4 rated voltage:48V battery type:maintainable sealed lead-acid battery motor power:350W motor type:48V motor brushless rated load:75kg max speed:35km/h range per charge:35km charging time:6~8h climbing ability: 10? Basic configuration:16"x2.5 wheels, rocker front fork, front & back drum brakes , 3in1 alarm, w/bumper