electric lithium battery folding bike 1, light weught and small size 2,material: magnesium alloy ... GIRLS AND OLD MEN CAN HOLD IT UP.3, THE BIKE IS MAINLY USE MAGNESIUM ALLOY, ANTI CORROSION, ANTIQUAKE, with tenacity ... BIKE FASHION APPERANCE.5, LITHIUM BATTERY, 36V 7 -- 10AH.6,BRUSHLESS MOTOR.7,FOLDABLE AND PORTABLE, CANE BE PUT INTO TRUNK Solar e-bike ...