... 4.children battery bikes 5.modern folding electric bike New arrival, modern, children battery bikes, folding electric bike TDN49-1ZMotor :Geared brushless motorWheel diameter : 20 ... :Shimano 7 speedCtn Size:1350X280X690mm1*20GP:99pcs1*40GP:201pcs40HQ:226pcs New arrival, modern, children battery bikes, folding electric bike