Headsets
Headsets fall into several categories (see below). There are external cup threadless headsets, which must be pressed into the frame. Another commonly used type is the zero-stack semi-integrated threadless headset, which also must be pressed into the frame, but unlike external cups, the cups sit flush with the headtube. Drop-in headsets have the bearing seats molded or machined directly into the frame where the cartridge bearings sit. The oldest and now uncommon type is the threaded headset.
FSA TH-873E (MR122) 1-1/8" bearing ACB 36x45 degrees
Replacement 1 1/8" bearing, outer diameter 41 mm, inner diameter 30.2 mm, height 6.5 mm, angle 36x45, weight 22 g.
FSA TH-872E (MR043) bearing 1-1/8" 41.5 x 30.2 x 6.5 mm 36x36
Steel angular contact bearing ACB, dimensions 41.5x30.2x6.5 mm, 36x36 degrees, weight 22 g.
FSA Compressor 1 1/8" headset expander for carbon steerer tube
Steerer expander designed for carbon fork steerer tubes 1 1/8".
FSA MR121 ACB industrial bearing 1 1/8" 45x45 IS42 mm
Industrial bearing for integrated headsets. Outer diameter 41.8 mm, inner diameter 30.5 mm. The bearing is chamfered at a 45-degree angle.
FSA Orbit IS-2 / 49E / ACB integrated headset
Integrated headset designed for frames with a head tube
FSA Crown Race H6088 fork ring 1.5"
Konus FSA H6088 for tapered or 1.5" fork steerer, for the same size bearing.
FSA Crown Race H6011 fork ring 1 1/8"
Replacement ring for a 1 1/8" fork steerer tube.
Cane Creek Forty ZS44 Tall Top upper headset part
For frames with an internal head tube diameter of 44 mm, bearing internal diameter of 28.6 mm.
FSA Orbit Z 1.5" to 1 1/8" PressFit integrated headset Black
The integrated FSA headset with PressFit technology, reduction for 1.5" to 1 1/8" steerer tubes, ensures strength and effortless smooth operation.
Cane Creek Forty IS52/30 1 1.8" Drop In lower headset part
Separate lower part of an integrated headset for frames with a 1.5" head tube and 1 1/8" fork steerer.
Shaman Racing headset wrench 1 1/8" - 1.5"
Very simple assembly and disassembly, reusable, constant firm grip.
FSA PIG DH Pro Ahead headset
Ahead headset for frames with a classic head and an internal diameter of 34mm and a 1 1/8" fork steerer, industrial bearings, for extreme loads.