Headsets

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

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

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

Crown races for Wolf Tooth headsets. - For Wolf Tooth headsets

Wolf Tooth headsets are machined in the USA with aircraft-grade 6061 aluminum. Our headsets have three levels of superior custom sealing to protect bearings from the elements and prolong the life of the headset. They are designed to be lightweight, strong, and durable. Available in a variety of colors. These EC headsets are for frames with external bearing cups, which places the bearing outside of the frame with these headsets. Premium Headsets with Enduro stainless steel bearings have a lifetime warranty. Upper assembly features: - Ultralight Stem Cap With Integrated Spacer plus an aluminum bolt and a star nut. - 5mm cover = 16mm total stack, 15mm cover = 25mm total stack, 25mm cover = 35mm total stack. - O-ring seal prevents water intrusion around the steerer tube. - Custom-molded upper lip seal provides additional protection for upper bearing.

ABI Headset Bearing for new builds or replacements.

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

Wolf Tooth headsets are machined in the USA with aircraft-grade 6061 aluminum. Our headsets have three levels of superior custom sealing to protect bearings from the elements and prolong the life of the headset. They are designed to be lightweight, strong, and durable. Available in a variety of colors. These EC headsets are for frames with external bearing cups, which places the bearing outside of the frame with these headsets. Premium Headsets with Enduro stainless steel bearings have a lifetime warranty. Lower assembly features: - Custom molded dual-lip seal on the crown race to protect the lower bearing in the toughest conditions. - 12.25mm stack. - Service and additional parts available.

Headset bearings for Wolf Tooth headsets. - Replacement bearings

The 40-Series is the workhorse of Cane Creek's headset line-up. Representing the balance of performance, durability and value, the series incorporates all the features necessary for a robust, lightweight, long-lasting headset. Zero stack uppers press into head tube with very little stack height. Lowers are either zero stack or external cup. - Sealed black oxide bearings - Carbon-friendy compression ring captured in top cover, keeping shims in place - Steel crown race with integrated seals - Interlok spacer compatible - Compatible with tapered 1-1/8" to 1-1/2" steerer tubes, or straight 1-1/8" steerers with a conversion crown race (sold separately)

ABI Headset Bearing for new builds or replacements.

The 40-Series is the workhorse of Cane Creek's headset line-up. Representing the balance of performance, durability, and value, the series incorporates all the features necessary for a robust, lightweight, long-lasting headset. Integrated bearings fit directly into compatible head tubes without the need of a bearing press. - Sealed black oxide bearings - Carbon-friendy compression ring captured in top cover, keeping shims in place - Steel crown race with integrated seals - Interlok spacer compatible - Uses 36/45 degree crown race and compression ring - Compatible with tapered 1-1/8" to 1-1/2" steerer tubes, or straight 1-1/8" steerers with a conversion crown race (sold separately)

Wolf Tooth headsets are machined here in our Minnesota shop with aircraft-grade 6061 aluminum. They are designed to be lightweight, strong, and durable. Our headsets have three levels of industry-leading custom sealing to protect bearings from the elements and prolong the life of the headset. Available in a variety of colors. These ZS headsets are for frames with internal bearing cups that are pressed into the frame. Premium Headsets with Enduro stainless steel bearings have a lifetime warranty. Upper assembly features: - Ultralight stem cap with integrated spacer plus an aluminum bolt and a star nut. - 6, 15, and 25 mm stack height top cover options (6mm cover = 6mm total stack, 15mm cover = 15 total stack, 25mm cover = 25mm total stack). - O-ring seal prevents water intrusion around the steerer tube. - Custom-molded upper lip seal provides additional protection for the upper bearing.

Wolf Tooth headsets are machined here in our Minnesota shop with aircraft-grade 6061 aluminum. They are designed to be lightweight, strong, and durable. Performance Headsets with Enduro black oxide bearings have a one-year warranty. Our headsets have three levels of industry-leading custom sealing to protect bearings from the elements and prolong the life of the headset. Available in a variety of colors. These ZS headsets are for frames with internal bearing cups that are pressed into the frame. Lower assembly features: - Custom-molded dual-lip seal on the crown race protects lower bearing in the toughest conditions. - All components are precision machined in-house at Wolf Tooth from aircraft-grade aluminum to ensure the highest level of quality. - Service and additional parts available.

Converts quill style forks to use threadless stems.

ABI Headset Bearing for new builds or replacements. - Enduro Headset Bearing ACB 4545 137 Stainless 37 x 46.85 x 7 mm: 45 x 45

- Pig DH-Pro feature angular contact sealed upper bearing and an industrial cartridge sealed bearing with an alloy upper cup and CrMo lower cup - Pig feature oversized 1/4" lower ball bearings, 5/32" upper bearings - Big Fat Pig feature super oversized caged ball bearings - Pig: External Cup, traditional - Pig S.H.I.S.: EC34/28.6|EC34/30 - Big Fat Pig S.H.I.S.: EC49/38.1|EC49/40 - Pig DH Pro S.H.I.S.: EC34/28.6|EC34/30 - Stack: 15.4mm/13.6mm (Pig), 17mm/11.7mm (Big Fat Pig), 15.5mm/16mm (Pig DH Pro) - Color: Black - Weight: 193g (Pig), 345g (Big Fat Pig), 198g (Pgi DH Pro)

- 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

FSA Standard Headset Bearings

Replacement headset uppers from FSA. - S.H.I.S. Stem Clamp Diameter: 28.6 Threadless - Bearing Type: Cartridge - S.H.I.S Upper: IS41 - Upper Stack Height: 8.2

FSA Standard Headset Bearings

New dust cap design, with Monogram laser etched logo, for a cleaner look to accommodate a taller riding set up with less spacers. Same quality as Odyssey's Pro Headset using high-quality sealed bearings and a precision tapered wedge to keep the headset tight at all times. FEATURES - High-quality sealed bearings. - Color matched spacers included. - 15mm dust cap. With 3mm, and 2mm spacers - Laser etched Odyssey bearings. SPECS - Campagnolo standard spec. - 1 1/8-inch integrated headset. - 45º tapered bearings - 41.8mm outer diameter (fits 42mm BMX head tubes).

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

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.

Wolf Tooth Premium headsets feature high-end bearings made by Enduro. They are engineered to use the largest possible ball size and are filled with high-pressure waterproof lubricant. A pair of dual-lip seals ride in micro-grooves to keep out water and debris. - Stainless Steel Bearings provide unparalleled corrosion resistance - Highly recommended if your headset will be exposed to wet conditions or sweat - Lifetime warranty - Lower Bearing, includes race

Compatible crown races for Ritchey headsets. - This adaptor allows 36° headset bearings, such as those from Chris King, to fit the Ritchey WCS Carbon Adventure fork that feature a 45° crown race - This adaptor is designed for the Ritchey Carbon Adventure fork, but it will work with all Ritchey carbon fiber forks, though with possible slight cosmetic inconsistencies - Stainless steel - Use of this adapter will effectively increase fork length by 4.4mm

- CrMo headset with oversized 3/16" lower ball bearings, 5/32" upper bearings and an alloy top cover - Mallet: External Cup, traditional - S.H.I.S.: EC34/28.6|EC34/30 - Stack: 15.4mm/13.6mm - Color: Black - Weight: 150g

Wolf Tooth Precision Headsets for Trek Knock Block are machined in the USA out of aircraft grade aluminum with superior sealing for protection against the elements. Available in a variety of colors to add some style to your bike. These upper headsets are for Trek frames with molded-in internal bearing cups. - Designed to work with Trek's Knock Block system - The top cap on these headsets have unique raised features that key to Knock Block compatible stems (made by Bontrager - If spacers are needed, you will need to use special Knock Block compatible spacers with notch features - This product is the upper headset only - Lower headsets on bikes with Knock Block do not have any unique features. They are usually IS headsets which are available separately

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.

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