... bike 1, light weught and small size 2,material: magnesium alloy 3,li-battery 36V, 7/8/9/10 A ... 180WMAX SPEED 20km/hPACKAGE SIZE: 740*290*840mm1,A NEW FASHION TRANSPORTATION TOOLS.2, SMALL AND MUCH ... OLD MEN CAN HOLD IT UP.3, THE BIKE IS MAINLY USE MAGNESIUM ALLOY, ANTI CORROSION, ANTIQUAKE ... , with tenacity.4,A NEW DESIGN AND PERFECT CRAFTWORK, WHICH BROGHT THE BIKE FASHION APPERANCE.5, LITHIUM ...