... /55mm/59mm/61mmfork: hi-ten steel, shrinked 19mmhead parts: steel, 8 pcs, 22.2*25.4*27mmB.B. parts: steel cup ... , CP, KTfreewheel: 16T, full ball, CPchain: KMC, 1/2"*1/8"chain tighter: steel, 2 pcscrank set: steel chainring, 48T, alloy ... : PVC, 700C * 16mmPedal: PVC body, with reflector and ballSaddle: for road bike, with steel clampSeatpost: steel, 300mmSeat pin: alloy clamp, with ...