JAVA fit Adult folding bike 18 speed. Frame:JAVA FIT Alloy folding frame Shifter:Shimano Altus M2000 Front derailleur: SHIMANO Clairs FD-R2000 Rear derailleur: SHIMANO Sora R3000 Crank: 42/52T, 165mm; Brake:Dual disc brake 160mm; Chain: KMC-Z99 Seat post:33.9*550mm; Folding Box:JAVA folding technology' safe/strong/stable; Tire:CST 20*1.35 Wheel: front 2bearings,rear 4bearings hub; DECA 42mm aero rim; Cassette:11-32T,9s Pedal:alloy الحالة مستعمل