Fsa th-805st zs44 28.6 - zs44 30 threaded headset

Product Description The FSA TH-805ST is a semi-integrated headset for threaded forks. Use:For 1 1/8" upper and lower head tubes combined with standard 1 1/8" forks.Specifications:Application:Road, Cross CountryDesign:Zero Stack (ZS)Top Outer Diameter:44 mmTop Inner Diameter:28.6 mmBottom Outer Diameter:44 mmBottom Inner Diameter:30 mmHead Tube:1 1/8"Steerer Tube:1 1/8"Thread Pitch:26 tpiTechnical Information:Material:aluminiumBearings:CBB Ø 5/32 " x20 (upper), CBB Ø 5/32 " x20 (lower)Upper Insert Depth:7 mmLower Insert Depth:7 mmTop Stack Height:16.4 mmBottom Stack Height:2.7 mmFeatures:for 44 mm head tube inner diameter = 50 mm head tube outer diameterforged bearing cupstotal stack height: 19.1 mmStandardized Headset Identification System (S.H.I.S.):In order to clarify and bring uniformity to a sea of headset standards, manufacturers Acros, Cane Creek, Hope, Race Face, Reset Racing and Ritchey have agreed upon using a shared nomenclature, which will likely include more participating companies in the future. This system takes into account a combination of frame and fork dimensions. Both the top and bottom parts of the headset are marked by two alphanumeric identifiers. The first identifier indicates the type of headset (External Cup, Zero Stack, Integrated) and head tube diameter. The second identifier - separated from the first by a backslash - indicates the diameter of the steerer tube. When referring to a complete headset, the specifications of both top and bottom parts must be combined. Nomenclature:EC:Bearings contained within headset cups that are located outside of the frame (External Cup)ZS:Bearings contained within pressed-in headset cups where the cup and bearings rest inside the frame (Zero Stack)IS:Bearings that fit directly into a bonded or machined interface that is integrated into the frame (Integrated)Manufacturer Number:141-2325 Contents:, consisting of: 1 x top headset cup with bearings1 x bottom headset cup with bearings2 x nuts1 x snap ring1 x compression ring1 x crown race Manufacturer: F.S.A. S.R.L. Via Francesco Petrarca. 4 20123 Milan Italy info@fullspeedahead.com