Frame: the front and the middle parts are baking finish, others are aluminum original color Wheel: magnesium alloy wheel Pedal: aluminum alloy folding pedal Brush: dc brushless with gear Handle: electric display handle Light: front light Unfold size: 126 * 55 * 109 cm Folding size: 61 * 27.5 * 81 cm Material: aluminum magnesium alloy Overall height: 108 cm Net weight (not including battery): 16 kg Battery: lithium battery (panasonic battery cell) 36v Max speed: 20 km/h Battery full-charge range: - electric drive: 30 km - pedal-operated booster: 50~60 km Charge time: 3~5 hours Motor: 200 w Max load: 110 kg Battery capacity (optional): - 7 ah (net weight 1.9 kg) - 9 ah (net weight 2.4 kg).