... 59mm/61mmfork: hi-ten steel, shrinked 19mmhead parts: steel, 8 pcs, 22.2*25.4*27mmB.B. parts: steel cup ... , 5 pcs, 3P axleHandle bar: steel, MTB type bar, 500mm* ... hub: alloy, 3/8*110*170mm*32H, with fixed gear, 16T, CP, KTfreewheel: 16T, full ball, CPchain: KMC, 1 ... /2"*1/8"chain tighter: steel, 2 pcscrank set: ...