Headsets

High-quality replacement headset bearings are smooth like butter. - Sealed cartridge bearing for long life - Durable steel bearing housing

Service and replacement parts specifically for Trek Knock Block technology. Genuine replacement parts Get your bike back on the trail with the headset parts you need. - Trek proprietary headset components compatible with Trek Knock Block models - 58-degree headset fits all 2017-2020 Knock Block equipped models - Includes crown race, bearings, top cover, frame chip & fastener - Frame chip has display tabs to connect Bosch Kiox Mount sold separately - Must be paired with Knock Block stem and Knock Block spacers - Knock Block headset spacers not included

- Steel cup semi-integrated design - Alloy top cap with hollow bolt allows for brake cable pass-through - Caged bearing 5/32" x 22A - ED Black durable finish - SHIS: ZS44/28.6|ZS44/30 - Steerer OD: 28.6mm - Cup: 44mm - Race: 30mm - Stack Height: 9.4mm

Get back on the bike with a genuine replacement headset. Original replacement headset for your bike. PRODUCT DETAILS - Confirm compatibility before use - Includes reducer, bearings, cling ring, gasket and dust cover

Service and replacement parts specifically for Trek Knock Block technology. Get your bike back on the trail with the headset parts you need. PRODUCT DETAILS - Trek proprietary headset components compatible with Trek Knock Block models - 62-degree headset fits 2020 & 2021 Supercaliber and 2021 Procaliber - Includes crown race, bearings, top cover, frame chip & fastener - Frame chip has display tabs to connect Bosch Kiox Mount sold separately - Must be paired with Knock Block stem and Knock Block spacers - Knock Block headset spacers not included

FSA bearings that set directly into the frame without the use of pressed in cups. - 36/45 degrees is Cane Creek-compatible - 45/45 degrees is Campagnolo-compatible

Crown races for Cane Creek headsets fit a variety of lowers and crown race seat diameters. - Compatible with 10-, 40- and 110-Series headsets and backwards compatible with S and XX Series - Integral mold seals keep out the elements - Durable steel construction

Get back on the road with a genuine replacement headset for your Cruiser Go! Original replacement headset assembly for your Electra. PRODUCT DETAILS - Direct replacement for Cruiser Go! Models - Compatible with straight steerer 1-1/8" forks

- Steel cups - Steel retainer bearings - Available in chrome or black - S.H.I.S.: EC34/28.6-26tpi|EC34/30 - Steerer Dia: 28.6mm - Cup Dia: 34mm - Race Dia: 30mm - Stack Ht: 40mm Size: 1-1/8"

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek headsets. The 40 Series has light, tough, and beautiful machined 6061 T6-aluminum cups that are internally relieved for even more gram shaving. You also get Cane Creek's corrosion-resistant black-oxide sealed bearings and quality seals throughout to keep the grease in and the dirt out, including Cane Creek's Clip Seal that completely seals the top assembly.

Genuine replacement parts Get back on the road with a genuine replacement headset. Designed for use with internal cable routing - Includes lower and upper bearing - Includes headset compression ring - Compression ring is stackable with Allant+ 9.9 / Zouma Supreme+ Top cap and Spacers

Genuine replacement parts Keep your bike operating as it should. - Fits 1" threaded steerers for use with 1-1/8" headtubes - Cage ball bearings

Get back on the trail with a replacement headset assembly for your Session. Original replacement headset assembly for your Session. PRODUCT DETAILS - Complete headset assembly - Degree offset headset is stock on Session models - Only for use on 2018+ Session Carbon models

Replacement headset bearings from FSA. - Compatible with most Trek MTB integrated headset systems - Sealed bearing for long life - Compatible with Knock Block Headsets

Replacement headset bearings from FSA. - Compatible with most Trek MTB integrated headset systems - Sealed bearing for long life - Compatible with Knock Block Headsets

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek headsets. The 10 Series has light, tough and beautiful machined 6061 T6-aluminum cups, Cane Creek's corrosion-resistant black-oxide angular-contact bearings and quality seals throughout to keep the grease in and the dirt out.

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek headsets. The 40 Series has light, tough, and beautiful machined 6061 T6-aluminum cups that are internally relieved for even more gram shaving. You also get Cane Creek's corrosion-resistant black-oxide sealed bearings and quality seals throughout to keep the grease in and the dirt out, including Cane Creek's Clip Seal that completely seals the top assembly.

The Ritchey Logic Threadless headset features a smaller upper bearing to save weight, while the oversize lower bearing is designed to handle loads. Deep bearing cups promise solid insertion. - Bearing: Retainer ball bearing - Material: Steel/Plastic - Stack Height: 28.3mm

Authentic replacement Trek parts. Genuine replacement parts Get your bike back in action with a quality replacement headset. - 1-1/2in. Lower bearing - Angular contact bearings

Refresh your ride. Genuine replacement parts The right parts for the right bike. - Durable steel construction - Great low-cost replacement option

FSA Standard Headset Bearings

Get back on the road with a genuine replacement locking headset for your Townie. GENUINE REPLACEMENT PARTS Original replacement headset assembly for your Electra. PRODUCT DETAILS - Used when bike is being stowed - Keeps bike from tipping over when parked

- Forged steel cups with caged 5/32" ball bearings - TH-857 features a alloy top cover - TH Series: External Cup, traditional - S.H.I.S.: EC34/28.6|EC34/30 - Stack: 14.9mm/11mm - Color: Black - Weight: 126g

ABI Headset Bearing for new builds or replacements.

ABI Headset Bearing for new builds or replacements.

Genuine FSA replacement headsets. Genuine Replacement Parts Get your bike back on the trail with the headset parts you need. - Complete headset assembly includes 1.5" crown race - For use with 44mm upper ID and 56mm lower ID frames

FSA Orbit MX threadless headset features TH brand 36-degree angular contact sealed bearings. - Forged and CNC machined 6061/T6 aluminum cups - Patented alignment tip for increased durability and performance - TH Brand 36-degree Angular Contact sealed bearings - 7075 alloy crown race - Laser etched aluminum top cap - EC34/28.6 (36x36) | EC34/30 (36x36)

Cane Creek's 10 Series has light, tough, and beautiful machined 6061 T6-aluminum cups, Cane Creek's corrosion-resistant black-oxide angular-contact bearings and quality seals throughout to keep the grease in and the dirt out. • Technical Description: EC34/28.6/H16/K|EC34/30 /H12/K • Top Type: EC - External Cup • Top Head Tube Inside Dia.: 33.95mm • Stem Clamp Dia.: 28.6mm • Top Stack Height: 16mm • Top Bearing Type: Black Oxide • Bottom Type: EC - External Cup • Bottom Head Tube Inside Dia.: 33.95mm • Crown Race Seat Dia.: 30.015mm • Crown Race Type: Polymer • Bottom Stack Height: 12mm • Bottom Bearing Type: Black Oxide • Material: 6061 aluminum • Weight: 88.29g

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 40-Series headsets. • Technical Description: ZS44/28.6/H8/K|ZS56/40/H4/K • Top Type: ZS - ZeroStack • Top Head Tube Inside Dia.: 44.00mm • Stem Clamp Dia.: 28.6mm • Top Stack Height: 8mm • Top Bearing Type: Black Oxide, Sealed • Bottom Type: ZS - ZeroStack • Bottom Head Tube Inside Dia.: 55.95mm • Crown Race Seat Dia.: 39.79mm • Crown Race Type: Steel, Face-Sealed • Bottom Stack Height: 4mm • Bottom Bearing Type: Black Oxide, Sealed • Material: 6061 aluminum • Weight: 109g

- Bearing Type: Cartridge - Weight: 86 g - Crown Race: 40 - S.H.I.S Lower: IS52 - S.H.I.S Upper: IS42 - S.H.I.S. Stem Clamp Diameter: 28.6 Threadless