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 ACB MR136 bearing 45x45 1 1/8"
Angular contact bearings, high precision running, dimensions 41.8x32.8x6 mm, angle: 45°x45°.
FSA Orbit C40 1 1/8-1 1/5" Drop In headset
Integrated headset, steerer tube 1 1/8" to 1.5", bearings 41.8 mm and 51.9 mm, includes star nut and top cap.
FSA Orbit IS 2 1/8" 36/45 CC Drop Headset 41.2 mm
Integrated headset, 41 mm bearings, 36x45 degree angles, weight: 110 g.
FSA Super Light bearing ACB 36x45 1.5"
FSA Super Light bearing, ACB angular contact, size 51.8x40x8 mm, angles 36x45 degrees, weight 20.6 g.
Ritchey WCS Zero Logic Press Fit 1 1/2" ZS56 lower part headset
MTB PressFit headset for tapered frames - lower separate part, lower cup diameter 56 mm.
Wolf Tooth Ultralight headset top cap Ultraviolet Purple
Ultralight stem cap for a 1 1/8" steerer tube, CNC-machined 7075-T6 aluminum, weight approx. 8 g (including the bolt), minimalist flat design, compatible with…
Rie:sel Design Stem:cap headset cap Chief
Headset cap, carbon material, weight 6 g, for 1 1/8 forks.
Cane Creek 110 headset IS42/IS52
Integrated headset, top bearing 42 mm, bottom bearing 52 mm, for tapered fork steerer, aluminum 6061.
Ritchey Comp Integrated headset IS42/28.6 mm - IS42/30 mm height 6 mm
Drop-in headset, bearings 42 mm/28.6 mm upper and 42/30 mm lower, top section height 6 mm, black top color.
Tune Ahead Cap Aluminium steering cap blue
CNC-milled Alu Tune steering cap including screw in blue.
FSA ORBIT IS 1 3/8" headset 15.2 mm AL
Integrated headset, for a tapered 1 1/8" to 1 3/8" steerer, top bearing 41 mm, bottom bearing 48.9 mm, aluminum top part, top stack height 15.2 mm, weight 59 g.
FSA Premium Press Fit 56 mm lower part of the headset
Lower part of the headset, press fit cup with an external diameter of 55.95 mm, industrial bearing 36°/45° ACB with an internal diameter of 39 mm.
FSA Premium IS52 1.5" lower head set part
Aluminum lower headset piece for a 1.5" steerer tube, external diameter 52 mm, weight 46.5 g, ACB bearings with 36/45° angles.
FSA Premium ZS44 1 1/8" bottom part headset
Aluminum lower part of a PressFit headset, for a 1 1/8" steerer tube, outer diameter 44 mm, weight 34.2 g, ACB bearings with 36/45° angles.
FSA Premium OnePointFive EC44 1.5" lower part of headset
Aluminum lower part of headset for Tapered steerer tube 1.5", outer diameter 44 mm, bearings 36°/45° ACB, weight 78.7 g.
FSA Premium IS42 1 1/8" bottom headset part
Aluminum lower headset part, for 1 1/8" steerer tube, outer diameter 42 mm, weight 34.7 g, ACB bearings with 45/45° angles.
FSA Premium ZS44 1 1/8" upper headset part
Aluminum upper part of PressFit headset, for 1 1/8" steerer tube, outer diameter 44 mm, weight 69.7 g, ACB bearings with 36/45° angles.
FSA Premium Orbit IS41 1 1/8" bottom headset part
Aluminum lower headset part, for 1 1/8" steerer tube, outer diameter 41 mm, weight 24.2 g, ACB bearings with 36/45° angles.
FSA Premium IS41 1 1/8" upper headset part
Aluminum upper part of the headset, for Tapered steerer 1 1/8", outer diameter 41 mm, weight 52.5 g, ACB bearings with 36/45° angles.
Ritchey WCS ZS44/30 lower headset part
Bottom part of the press-fit headset, bearing 41/30.15/7mm 45°/45°, including bottom crown race for fork steerer, weight 35 g.
Ritchey WCS headset bearing 51.9/40/8mm
Ritchey WSC headset bearing has a 45° angle.
Ritchey WCS headset bearing 30.5 x 41.8 x 8 mm, 45x45
Bearing for integrated headset, dimensions 30.5 x 41.8 x 8 mm, angles 45x45, material steel/titanium.