This is a five speed rear wheel drive foldable bicycle with two chains in the power transmission system. 1.Material: 1) 100% aluminum-alloy 2) Five adjustable gearshift,single gear 3) double chain 4) derailleur bar with shift pointer 5) front and rear aluminum wheel 6) Tire: front/rear 12.5 x 2.25 2.Easily Folding: 1) bicycle traverse tube folding 2) bicycle frame upright tube folding 3) bicycle T-tube folding 4) T-tube lock clasp 5) rear mudguard folding with hoodle 6) pedal folding 3. Product size: Before folding : 1280 x 530 x 1060mm After folding : 560 x 225 x 500mm Carton size: 580 x 245 x 520mm G.W./N.W.:13.5 kg /11.5 kg 4.Conveyance: 1pc/carton Qty/20' FCL: 428pcs Qty/40' FCL: 856pcs Qty/40' HQ: 960pcs 5.FOB NINGBO PRICE