6 inch portable folding A bike Bike frame Material:PA66 series Aluminum Wheel material:PU Wheel size:6" Max load:85KGS 6 inch portable folding A bikeBike frame ... -90 cmDual chain ratio:12:8 and 35:9 Folding size:67x30x16cm,shape:A Unfolding size:100x70x43cm,shape:H Packing size:68 ... ,1360 PCS/40ft,1608 PCS/40"HQ 6 inch portable folding A bike