electric folding bicycles should be the model requires assembly can not be wrong installation, leakage loaded; each fastener to be tightened in place, all rotating parts should be flexible operation; each member should be symmetrical and symmetrical about the center of the frame surface, no obvious bias oblique; transmission and braking systems should be installed correctly, flexible manipulation; folding electric bikes does not allow the moving parts of the movable member relative to grazing.
VTUVIA SF20 folding electric bike is a excellent folding ebike!
回复删除