Electric bicycle

Size:180x70x114cm 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:70km charging time:6~8h climbing ability: 10? Basic configuration:16''x3.0 wheels, rocker front fork, front & back drum brakes , 3in1 alarm, w/bumper