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

Wolf Tooth Performance Headsets are machined out of aircraft grade aluminum and assembled with Black Oxide Cartridge Bearings, balancing quality and price. - Black Oxide Bearings are made from chromium steel for high load capacity and durability - Black oxide coating reduces corrosion

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.

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.

The GeoShift Performance Angle Headset allows you to adjust the geometry of your bike by changing the head tube angle, available in 1 or 2 degree options. This unique design lets the bearings sit at an angle to align with the steerer tube, preventing creaking noises commonly found with angle headsets that feature a spherical design. Reduce the head tube angle to make for slacker geometry and added stability on fast descents, or increase the angle using the opposite orientation of the headset, to make for steeper geometry and quicker steering with maximum front wheel traction. - Enduro black oxide coated chromium steel bearing included on both the upper and lower - Upper headsets ship with a star nut which can only be used on forks with steel or aluminum steerer tubes. For forks with carbon steerer tubes you will need a compression plug (sold separately) - Machined in the USA with lightweight, strong, durable aircraft-grade 6061 aluminum - Includes: Upper and lower cups, bearings, crown race, star nut, shims, stem cap with 5mm integrated spacer and bolt - 1 Degree Adjustment - Long version is designed for headtube lengths between 115 - 140 mm

Wolf Tooth headsets are machined in the USA with aircraft-grade 6061 aluminum. Our Performance Headset is built to include a black oxide-coated chromium steel bearing and a one-year warranty. Our headsets stand above the rest with 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. 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.

The GeoShift Performance Angle Headset allows you to adjust the geometry of your bike by changing the head tube angle, available in 1 or 2 degree options. This unique design lets the bearings sit at an angle to align with the steerer tube, preventing creaking noises commonly found with angle headsets that feature a spherical design. Reduce the head tube angle to make for slacker geometry and added stability on fast descents, or increase the angle using the opposite orientation of the headset, to make for steeper geometry and quicker steering with maximum front wheel traction. - Enduro black oxide coated chromium steel bearing included on both the upper and lower - Upper headsets ship with a star nut which can only be used on forks with steel or aluminum steerer tubes. For forks with carbon steerer tubes you will need a compression plug (sold separately) - Machined in the USA with lightweight, strong, durable aircraft-grade 6061 aluminum - Includes: Upper and lower cups, bearings, crown race, star nut, shims, stem cap with 5mm integrated spacer and bolt - 1 Degree Adjustment - Short version is designed for headtube lengths between 90 - 115 mm

Headset bearings for Wolf Tooth headsets. - Replacement bearings

Headset bearings for Wolf Tooth headsets. - Replacement bearings

Headset bearings for Wolf Tooth headsets. - Replacement bearings

The Classic Logic Threadless Headset is the reliable workhorse of the Ritchey threadless headset range. Now available with our timeless high-polish finish, this smooth and reliable specimen features lightweight, precision-machined aluminum cups, sealed cartridge 45/45-degree bearings, and comes packed with Ritchey Grease. A sealed design promises minimal penetration from the elements. The Classic Threadless Headset adds that classy and reliable detail your bike deserves. - Stack Height: 28.3mm - Material: Alloy - Upper Fit (S.H.I.S.): EC34/28.6 - Lower Fit (S.H.I.S.): EC34/30 - Bearing: Sealed cartridge (ACB)—Ti coated

- No. series headsets offer excellent performance and value - No. 8b: 36x45 degree Cane Creek Integrated, or No. 10: Zero Stack shallow available for 1-1/8" applications - No. 10 S.H.I.S.: ZS44/28.6|ZS44/30 - No. 8B S.H.I.S.: IS42/28.6|IS42/30 - Stack: 5.2mm/3.7mm (No. 10), 8mm/1mm (No. 8B) - Color: Black - Weight: 93g (No. 10), 74g (No. 8B)

Hellbender 70 Lite headset.

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)

Backed by a 110-year warranty and constructed in Fletcher, NC, the 110-Series headset is designed with no compromises in quality, durability, or finish quality. Zero stack uppers press into head tube with very little stack height. Lowers are either zero stack or external cup. - Sealed stainless steel bearings - Carbon-friendy compression ring captured in top cover, keeping shims in place - 7075 T-6 aluminum cups machined in Fletcher, NC - Aluminum dual seal crown race protects lower bearing - Interlok spacer compatible - 110 year warranty

ABI Headset Bearing for new builds or replacements.

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 110 headsets. • Technical Description: EC44/40/H12/x • Bottom Type: EC - External Cup • Bottom Head Tube Inside Dia.: 44.00mm • Crown Race Seat Dia.: 39.76mm • Crown Race Type: Aluminum, Dual-Seal • Bottom Stack Height: 12mm • Bottom Bearing Type: Top-quality, sealed stainless steel bearings • Material: 7075 aluminum • Weight: 61.02g

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 40-Series headsets. • Technical Description: IS41/28.6/H9/K • Top Type: IS - Integrated • Top Head Tube Inside Dia.: 41.1mm • Stem Clamp Dia.: 28.6mm • Top Stack Height: 9mm (Short), 15mm (Tall) • Top Bearing Type: Black Oxide, Sealed • Material: 6061 aluminum • Weight: 37g

A new headset gives you a new lease on life. This is the upper part of an integrated headset for a 44mm headtube. - Lower part of the headset sold separately

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)

ABI Headset Bearing for new builds or replacements.

Bringing Ritchey's heritage of legendary cycling products into the world of e-bikes and electronic shifting, Tom Ritchey designed a unique headset that allows the cables to be run internally from the stem into standard frames without requiring the frame or fork to be modified. The Logic-E headset is designed to allow Shimano Di2 and STEPS cables to be concealed from view and the wind while protecting them from damage. - Steerer size: 1-1/8" upper - Drop-in (IS) or Press-Fit (S) - Weight: 35-44g

- 1-1/8" / 1-1/4", 45°/ 45° ACB - Compatible with carbon or alloy head tubes - For tapered 47mm / 52mm OD head tube - For 1-1/8" to 1-1/4" tapered fork - Alloy top cover - Upper : 1-1/8" angular contact bearing black seal) - Lower : 1-1/4" angular contact bearing (black seal) - Stack height 15.6+1=16.6mm - 74 grams

The WCS Logic Threadless Headset the reliable workhorse of the Ritchey threadless headset range. This smooth and reliable specimen features lightweight, precision-machined aluminum cups, sealed cartridge 45/45-degree hybrid ceramic bearings with a titanium coating, and comes packed with Ritchey Grease and a sealed design that promises minimal penetration from the elements. - Bearing: Sealed cartridge (ACB) - Ti coated - Material: Alloy - Stack Height: 28.3mm

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.

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.

- 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)

- Carbon fiber top caps, bolt and steel star nut - Size: 1-1/8" - Color: Black - Weight: 21g

Designed 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. - 10mm, 3mm and 2mm (15mm total) - Laser etched Odyssey bearings. SPECS - Campagnolo standard spec. - 1-1/8 integrated headset. - 45º tapered bearings 41.8mm outer diameter (fits 42mm BMX head tubes).

The Sunday BMX integrated headset is designed to be a quality headset at an affordable price. - Laser-etched Sunday logo - Color-matching spacers included - Gyro compatible - High quality sealed bearings and precision tapered wedge help to keep the headset tight