Headset Parts

—$24.95

The Wolf Tooth Compression Plug provides an anchor point to set the headset preload on road, MTB, or gravel bikes with carbon forks-essentially securing everything on the steerer tube. A stem cap with a 5mm integrated spacer is included, which is important since many fork manufacturers require the steerer tube to extend above the top of the stem. It is available in multiple color options to add some style to your bike. Fits forks with 1 1/8" steerer tubes Designed for carbon steerer tubes but works with metal steerer tubes with ID from 23.5 mm to 24.5 mm 7075-T6 aluminum Never use a star nut on forks with carbon steerers Wolf Tooth Compression Plug With Integrated Spacer Stem Cap Compression Plug UPC: 810006804720

by Wolf Tooth

—$13.90

ZN40-Series bearings are corrosion-resistant zinc-coated, machined steel cartridge bearings with hardened steel balls, which vastly increases the longevity of your headset.Compatible with 110-, 40-, and 10-Series headsets Item Specifications Bearing I.D. (mm) 27.25 Bearing O.D. (mm) 38 Bearing Type Cartridge Cartridge Bearing Angle 36x45 Thickness 6.5 Cane Creek ZN40-Series Bearing Headset Bearing UPC: 840226078366

by Cane Creek

—$19.95

Ritchey compression plug and top cap for for forks with carbon steerer. Item Specifications Color Black Ritchey Compression Plug Compression Plug UPC: 796941331593

by Ritchey

—$35

The Chris King Base Plates (Crown Races) 44.0mm OD base plate is for headsets produced prior to 4/1995 and have an F designation 40.5mm OD base plate is for headsets produced after 4/1995 and have a B designation Chris King Base Plates (Crown Races) Crown Race UPC: 841529023039

by Chris King

—$14.39

It's a stack spacer. It's a top cap. It's both! The Ultralight stem cap is designed specifically for carbon steerers that require that the steer tube extend above the stem. 1 1/8" top (straight 1 1/8" or 1 1/2" to 1 1/8" taper) steerer tubes only Light-weight and durable 6061-T6 aluminum Item Specifications Color Espresso Defined Color Brown Wolf Tooth Ultralight Stem Cap with Integrated Spacer Headset Top Cap UPC: 810006806441

by Wolf Tooth

—$29.99

Hellbender bearings have an improved seal structure and are cross compatible with Cane Creek headsets. Item Specifications Bearing I.D. (mm) 30.3 Bearing O.D. (mm) 41.8 Bearing Type Cartridge Cartridge Bearing Angle 36x45 Thickness 6.5 Cane Creek Hellbender Headset Bearing Headset Bearing UPC: 840226078151

by Cane Creek

—$39.99

Hellbender Lite bearings have an improved seal structure and are cross compatible with Cane Creek headsets. Item Specifications Bearing O.D. (mm) 52 Bearing Type Cartridge Cartridge Bearing Angle 36x45 Cane Creek Hellbender Lite Headset Bearing Headset Bearing UPC: 840226091143

by Cane Creek

—$24.99

ZN40-Series bearings are corrosion-resistant zinc-coated, machined steel cartridge bearings with hardened steel balls, which vastly increases the longevity of your headset.Compatible with 110-, 40-, and 10-Series headsets Item Specifications Bearing O.D. (mm) 49 Bearing Type Cartridge Cartridge Bearing Angle 36x45 Cane Creek ZN40-Series Bearing Headset Bearing UPC: 840226084367

by Cane Creek

—$14.90

Details matter when you are building up a bike and the stem cap should not be overlooked. This ultralight and ultra-sleek stem cap fits flush with your stem or can be used with a spacer under it. It is precision machined out of 7075-T6 aluminum for the lowest weight without any performance compromise. Compatible with 1 1/8" top (straight 1 1/8" or 1 1/2" to 1 1/8" taper) steerer tubes only Total weight (cap + bolt): 8 grams (compare to a standard stem cap and steel bolt at 18 grams) Item Specifications Color Raw Silver Defined Color Silver Includes Star Nut No S.H.I.S. Stem Clamp Diameter 28.6 Wolf Tooth Ultralight Stem Cap Headset Top Cap UPC: 810006809657

by Wolf Tooth

—$12.88

If you're upgrading to a new headset and looking to add some vibrancy to make your bike shine, you'll love the Chroma Studio Top Cap. Available in various colors, you can infuse a touch of personalized style into your ride. Compatible with all 1-1/8 threadless headset uppers DOES NOT Include Bolt and/or Star nut. Item Specifications Color Gold Defined Color Gold Includes Star Nut No S.H.I.S. Stem Clamp Diameter 28.6   DOES NOT Include Bolt and/or Star nut. Cane Creek Chroma Studio Headset Top Cap Headset Top Cap UPC: 840226140971

by Cane Creek

—$12.88

If you're upgrading to a new headset and looking to add some vibrancy to make your bike shine, you'll love the Chroma Studio Top Cap. Available in various colors, you can infuse a touch of personalized style into your ride. Compatible with all 1-1/8 threadless headset uppers DOES NOT Include Bolt and/or Star nut. Item Specifications Color Blue Defined Color Blue Includes Star Nut No S.H.I.S. Stem Clamp Diameter 28.6   DOES NOT Include Bolt and/or Star nut. Cane Creek Chroma Studio Headset Top Cap Headset Top Cap UPC: 840226140957

by Cane Creek

—$26.99

Hellbender Lite bearings have an improved seal structure and are cross compatible with Cane Creek headsets. Item Specifications Bearing O.D. (mm) 41 Bearing Type Cartridge Cartridge Bearing Angle 36x45 Cane Creek Hellbender Lite Headset Bearing Headset Bearing UPC: 840226091129

by Cane Creek

—$14.90

It's a stack spacer. It's a top cap. It's both! The Ultralight stem cap is designed specifically for carbon steerers that require that the steer tube extend above the stem. 1 1/8" top (straight 1 1/8" or 1 1/2" to 1 1/8" taper) steerer tubes only Light-weight and durable 6061-T6 aluminum Item Specifications Color Raw Silver Defined Color Silver Includes Star Nut No S.H.I.S. Stem Clamp Diameter 28.6 Wolf Tooth Ultralight Stem Cap with Integrated Spacer Headset Top Cap UPC: 810006809640

by Wolf Tooth

—$16.16

Details matter when you are building up a bike and the stem cap should not be overlooked. This ultralight and ultra-sleek stem cap fits flush with your stem or can be used with a spacer under it. It is precision machined out of 7075-T6 aluminum for the lowest weight without any performance compromise. Compatible with 1 1/8" top (straight 1 1/8" or 1 1/2" to 1 1/8" taper) steerer tubes only Total weight (cap + bolt): 8 grams (compare to a standard stem cap and steel bolt at 18 grams) Item Specifications Color Ultraviolet Purple Defined Color Purple Includes Star Nut No S.H.I.S. Stem Clamp Diameter 28.6 Wolf Tooth Ultralight Stem Cap Headset Top Cap UPC: 810159401050

by Wolf Tooth

—$12.88

If you're upgrading to a new headset and looking to add some vibrancy to make your bike shine, you'll love the Chroma Studio Top Cap. Available in various colors, you can infuse a touch of personalized style into your ride. Compatible with all 1-1/8 threadless headset uppers DOES NOT Include Bolt and/or Star nut. Item Specifications Color Purple Defined Color Purple Includes Star Nut No S.H.I.S. Stem Clamp Diameter 28.6   DOES NOT Include Bolt and/or Star nut. Cane Creek Chroma Studio Headset Top Cap Headset Top Cap UPC: 840226025612

by Cane Creek

—$12.88

If you're upgrading to a new headset and looking to add some vibrancy to make your bike shine, you'll love the Chroma Studio Top Cap. Available in various colors, you can infuse a touch of personalized style into your ride. Compatible with all 1-1/8 threadless headset uppers DOES NOT Include Bolt and/or Star nut. Item Specifications Color Red Defined Color Red Includes Star Nut No S.H.I.S. Stem Clamp Diameter 28.6   DOES NOT Include Bolt and/or Star nut. Cane Creek Chroma Studio Headset Top Cap Headset Top Cap UPC: 840226140919

by Cane Creek

—$79.99

Hellbender Lite bearings have an improved seal structure and are cross compatible with Cane Creek headsets. Lightweight aluminum/steel hybrid Hellbender Lite bearings are 30% lighter than conventional headset bearings Designed specifically with 2024 Specialized Epic World Cup and Stumpjumper 15 Includes (1) 49.5/40.5 Upper Bearing and (1) 52/40 Lower Bearing For use with existing bearing cover and compression ring Item Specifications Bearing I.D. (mm) 40 Bearing I.D. (mm) 40.5 Bearing O.D. (mm) 49.5 Bearing O.D. (mm) 52 Color Red Material Aluminum Material Steel Cane Creek Hellbender Lite Headset Bearing Headset Bearing UPC: 840226157719

by Cane Creek

—$74.99

Hellbender Lite bearings have an improved seal structure and are cross compatible with Cane Creek headsets. Lightweight aluminum/steel hybrid Hellbender Lite bearings are 30% lighter than conventional headset bearings For use with 2024 Specialized Tarmac SL8 Includes (2) 49.5mm 45x45 bearings Item Specifications Bearing I.D. (mm) 40.5 Bearing O.D. (mm) 49.5 Bearing Type 45/45 Degree ACB Cartridge Bearing Angle 45x45 Color Red Material Aluminum Material Steel Thickness 6.5 Cane Creek Hellbender Lite Headset Bearing Headset Bearing UPC: 840226001425

by Cane Creek

—$16.16

It's a stack spacer. It's a top cap. It's both! The Ultralight stem cap is designed specifically for carbon steerers that require that the steer tube extend above the stem. 1 1/8" top (straight 1 1/8" or 1 1/2" to 1 1/8" taper) steerer tubes only Light-weight and durable 6061-T6 aluminum Item Specifications Color Ultraviolet Purple Defined Color Purple Includes Star Nut No S.H.I.S. Stem Clamp Diameter 28.6 Wolf Tooth Ultralight Stem Cap with Integrated Spacer Headset Top Cap UPC: 810159401043

by Wolf Tooth

—$40.17

ABI Headset Bearing for new builds or replacements. Item Specifications Bearing I.D. (mm) 32.75 Bearing O.D. (mm) 41.75 Bearing Type Cartridge Cartridge Bearing Angle 45x45 Enduro Headset Bearing Headset Bearing UPC: 811780022942

by Enduro