Headset Upper

—$44.99

Cane Creek 40-Series ZS(Zero Stack) assemblies feature press-in cups with bearings inside the frame. 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. Item Specifications Color Black Weight 44g Material AL-6061 Stack Height 8mm Bearing Type Black Oxide Sealed S.H.I.S Upper ZS44 S.H.I.S. Clamp Diameter 28.6 Cane Creek 40-Series ZS - Zero Stack Headset Headset Upper UPC: 840226094977 MPN: BAA0080K

by Cane Creek

—$54.95

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, durability and corrision resistance Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Item Specifications Bearing Type Black Oxide Steel Bearing Type Cartridge Color Black S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 6 Wolf Tooth Performance ZS Upper Headset Headset Upper UPC: 810006803457 MPN: ZS44U-5MM-BLK-B

by Wolf Tooth

—$74.95

Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and 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 Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Lifetime warranty Item Specifications Bearing Type Cartridge Bearing Type Stainless Steel Color Black S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 6 Wolf Tooth Premium ZS Upper Headset Headset Upper UPC: 812719027595 MPN: ZS44U-5MM-BLK

by Wolf Tooth

—$74.99

40-Series Zero Stack headsets set the standard for performance, durability and value. Drawing from the premium 110-Series design, the 40-Series includes all the features necessary for a durable, lightweight, long-lasting headset. Sealed ZN40 cartridge bearings 6000 series alloy cups and materials Steel crown race with integrated seals Interlok spacer compatible Item Specifications Bearing Type Cartridge Color Black Defined Color Black Material Aluminum S.H.I.S Lower ZS56 S.H.I.S Upper ZS56 S.H.I.S. Stem Clamp Diameter 28.6 Threadless Cane Creek 40-Series ZS - Zero Stack Headset Headset Upper UPC: 840226080192 MPN: BAA2202K

by Cane Creek

—$44.99

Cane Creek 40-Series ZS(Zero Stack) assemblies feature press-in cups with bearings inside the frame. 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. Item Specifications Color Black Weight 53g Material AL-6061 Stack Height 15mm Bearing Type Black Oxide Sealed S.H.I.S Upper ZS44 S.H.I.S. Clamp Diameter 28.6 Cane Creek 40-Series ZS - Zero Stack Headset Headset Upper UPC: 840226094946 MPN: BAA0079K

by Cane Creek

—$39.99

Cane Creek Headset Uppers Innovative Clip-Seal seals the top assembly and captures the compression ring Internal parts are cross-compatible across 10, 40 and 110 series Consistent stack heights across 10, 40 and 110 series Item Specifications Color Black Weight 37g Material AL-6061 Stack Height 9mm Bearing Type Black Oxide Sealed S.H.I.S Upper IS41 S.H.I.S. Clamp Diameter 28.6 Cane Creek 40-Series IS - Integrated Headset Headset Upper UPC: 840226095127 MPN: BAA0081K

by Cane Creek

—$44.99

Cane Creek Headset Uppers Innovative Clip-Seal seals the top assembly and captures the compression ring Internal parts are cross-compatible across 10, 40 and 110 series Consistent stack heights across 10, 40 and 110 series Item Specifications Color Black Weight 34g Material AL-6061 Stack Height 9mm Bearing Type Black Oxide Sealed S.H.I.S Upper IS42 S.H.I.S. Clamp Diameter 28.6 Cane Creek 40-Series IS - Integrated Headset Headset Upper UPC: 840226095189 MPN: BAA0094K

by Cane Creek

—$99.99

Cane Creek Headset Uppers Replaces 110 ZS headset top ZS44/28.6 fits 1-1/8" steerer tube tops (28.6mm stem clamp diameter) to 44mm (1-1/8") head tube tops Zero Stack (ZS) assemblies feature press-in cups with bearings inside the frame 8mm stack height (short) top cover Internally contoured and relieved cups and covers minimize weight and maximize strength Top-quality polishing, anodizing and laser etching Low-friction top cover seal completely seals cup from solid and liquid contaminants Fully captured top cover - no loose parts Updated compression ring design further enhances "carbon friendly" uses by evenly distributing clamping forces on the steerer Interlok spacer compatible Item Specifications Color Black Weight 52.8g Material AL-7075 Stack Height 8mm Bearing Type Stainless Steel S.H.I.S Upper ZS44 S.H.I.S. Clamp Diameter 28.6 Cane Creek 110 ZS Headset Headset Upper UPC: 840226096056 MPN: BAA0151K

by Cane Creek

—$44.99

Cane Creek Headset Uppers Innovative Clip-Seal seals the top assembly and captures the compression ring Internal parts are cross-compatible across 10, 40 and 110 series Consistent stack heights across 10, 40 and 110 series Item Specifications Color Black Weight 42g Material AL-6061 Stack Height 15mm Bearing Type Black Oxide Sealed S.H.I.S Upper IS42 S.H.I.S. Clamp Diameter 28.6 Cane Creek 40-Series IS - Integrated Headset Headset Upper UPC: 840226095172 MPN: BAA0095K

by Cane Creek

—$64.99

Featuring some of the lowest stack height bearing cover options available, with premium stainless steel Hellbender bearing and 6061 T-6 Aluminum cups and covers, the Hellbender 70 Slam is a premium headset created for riders seeking to lower their handlebars as low as possible without compromising bearing longevity and proper preload. Item Specifications Bearing Type Cartridge Color Black S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Threadless Cane Creek Hellbender 70 Slam Upper Headset Headset Upper UPC: 840226090931 MPN: BAA2163K

by Cane Creek

—$74.95

Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and 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 Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Lifetime warranty Item Specifications Bearing Type Cartridge Bearing Type Stainless Steel Color Blue S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 6 Wolf Tooth Premium ZS Upper Headset Headset Upper UPC: 812719027618 MPN: ZS44U-5MM-BLU

by Wolf Tooth

—$59.95

Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and 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 Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Lifetime warranty Item Specifications Bearing Type Cartridge Bearing Type Stainless Steel Color Black S.H.I.S Upper IS41 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 7 Wolf Tooth Premium IS Upper Headset Headset Upper UPC: 812719028059 MPN: IS41U-5MM-BLK

by Wolf Tooth

—$74.95

Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and 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 Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Lifetime warranty Item Specifications Bearing Type Cartridge Bearing Type Stainless Steel Color Orange S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 6 Wolf Tooth Premium ZS Upper Headset Headset Upper UPC: 812719027649 MPN: ZS44U-5MM-ORG

by Wolf Tooth

—$99.99

Cane Creek Headset Uppers Replaces 110 ZS headset top Zero Stack (ZS) assemblies feature press-in cups with bearings inside the frame 15mm stack height (tall) top cover Internally contoured and relieved cups and covers minimize weight and maximize strength Top-quality polishing, anodizing and laser etching Low-friction top cover seal completely seals cup from solid and liquid contaminants Fully captured top cover - no loose parts Updated compression ring design further enhances "carbon friendly" uses by evenly distributing clamping forces on the steerer Interlok spacer compatible Item Specifications Color Black Weight 60g Material AL-7075 Stack Height 15mm Bearing Type Stainless Steel S.H.I.S Upper ZS44 S.H.I.S. Clamp Diameter 28.6 Cane Creek 110 ZS Headset Headset Upper UPC: 840226096063 MPN: BAA0152K

by Cane Creek

—$39.99

Cane Creek Headset Uppers Innovative Clip-Seal seals the top assembly and captures the compression ring Internal parts are cross-compatible across 10, 40 and 110 series Consistent stack heights across 10, 40 and 110 series Item Specifications Color Black Weight 42g Material AL-6061 Stack Height 15mm Bearing Type Black Oxide Sealed S.H.I.S Upper IS41 S.H.I.S. Clamp Diameter 28.6 Cane Creek 40-Series IS - Integrated Headset Headset Upper UPC: 840226095134 MPN: BAA0082K

by Cane Creek

—$43.95

Drop in upper assembly with top cap, starnut and cap for 1-1/8" steerer. 45/45 degree angular contact bearing Titanium coated for corrosion resistance Item Specifications Bearing Type Sealed Cartridge Color Black Defined Color List Black S.H.I.S Upper IS42 S.H.I.S. Stem Clamp Diameter 28.6 Threadless Ritchey Upper Headset Assembly Headset Upper UPC: 796941332422 MPN: 33055337008

by Ritchey

—$99.99

Cane Creek Headset Uppers Replaces 110 IS headset top 41mm angular contact bearings feature 36degree inner chamfer, 45degree outer (36/45) Integrated (IS) assemblies feature chamfers molded inside the head-tube with no press-in cups 9mm stack height (short) top cover Internally contoured and relieved cups and covers minimize weight and maximize strength Top-quality polishing, anodizing and laser etching Low-friction top cover seal completely seals cup from solid and liquid contaminants Fully captured top cover - no loose parts Updated compression ring design further enhances "carbon friendly" uses by evenly distributing clamping forces on the steerer Interlok spacer compatible Item Specifications Color Black Weight 41.8g Material AL-7075 Stack Height 9mm Bearing Type Stainless Steel S.H.I.S Upper IS41 S.H.I.S. Clamp Diameter 28.6 Cane Creek 110 IS Headset Upper UPC: 840226096148 MPN: BAA0146K

by Cane Creek

—$59.99

Featuring some of the lowest stack height bearing cover options available, with premium stainless steel Hellbender bearing and 6061 T-6 Aluminum cups and covers, the Hellbender 70 Slam is a premium headset created for riders seeking to lower their handlebars as low as possible without compromising bearing longevity and proper preload. Item Specifications Bearing Type Cartridge Color Black S.H.I.S Upper IS41 S.H.I.S. Stem Clamp Diameter 28.6 Threadless Stack Height 4.6 Cane Creek Hellbender 70 Slam Upper Headset Headset Upper UPC: 840226090948 MPN: BAA2164K

by Cane Creek

—$59.99

Featuring some of the lowest stack height bearing cover options available, with premium stainless steel Hellbender bearing and 6061 T-6 Aluminum cups and covers, the Hellbender 70 Slam is a premium headset created for riders seeking to lower their handlebars as low as possible without compromising bearing longevity and proper preload. Item Specifications Bearing Type Cartridge Color Black S.H.I.S Upper IS42 S.H.I.S. Stem Clamp Diameter 28.6 Threadless Stack Height 4.6 Cane Creek Hellbender 70 Slam Upper Headset Headset Upper UPC: 840226090955 MPN: BAA2165K

by Cane Creek

—$54.95

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, durability and corrision resistance Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Item Specifications Bearing Type Black Oxide Steel Bearing Type Cartridge Color Orange S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 6 Wolf Tooth Performance ZS Upper Headset Headset Upper UPC: 810006803501 MPN: ZS44U-5MM-ORG-B

by Wolf Tooth

—$54.95

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, durability and corrision resistance Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Item Specifications Bearing Type Black Oxide Steel Bearing Type Cartridge Color Blue S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 6 Wolf Tooth Performance ZS Upper Headset Headset Upper UPC: 810006803464 MPN: ZS44U-5MM-BLU-B

by Wolf Tooth

—$44.99

Cane Creek 40-Series EC(External Cups) assemblies feature press-in cups with bearings outside the frame. 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. Item Specifications Color Black Weight 50g Material AL-6061 Stack Height 16mm Bearing Type Black Oxide Sealed S.H.I.S Upper EC34 S.H.I.S. Clamp Diameter 28.6 Cane Creek 40 EC Headset Headset Upper UPC: 840226094786 MPN: BAA0083K

by Cane Creek

—$39.95

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, durability and corrision resistance Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Bearing top cap outer diameter: 45.8mm Item Specifications Bearing Type Black Oxide Steel Bearing Type Cartridge Color Black S.H.I.S Upper IS41 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 7 Wolf Tooth Performance IS Upper Headset Headset Upper UPC: 810006803358 MPN: IS41U-5MM-BLK-B

by Wolf Tooth

—$74.95

Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and 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 Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Lifetime warranty Item Specifications Bearing Type Cartridge Bearing Type Stainless Steel Color Red S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 6 Wolf Tooth Premium ZS Upper Headset Headset Upper UPC: 812719027601 MPN: ZS44U-5MM-RED

by Wolf Tooth

—$54.95

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, durability and corrision resistance Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Item Specifications Bearing Type Black Oxide Steel Bearing Type Cartridge Color Red S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 6 Wolf Tooth Performance ZS Upper Headset Headset Upper UPC: 810006803525 MPN: ZS44U-5MM-RED-B

by Wolf Tooth

—$74.95

Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and 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 Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Lifetime warranty Item Specifications Bearing Type Stainless Steel Color Raw Silver Defined Color List Silver S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 6 Wolf Tooth Premium ZS Upper Headset Headset Upper UPC: 810006809756 MPN: ZS44U-5MM-RSIL

by Wolf Tooth

—$54.95

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, durability and corrision resistance Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Item Specifications Bearing Type Black Oxide Steel Color Raw Silver Defined Color List Silver S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 6 Wolf Tooth Performance ZS Upper Headset Headset Upper UPC: 810006809732 MPN: ZS44U-5MM-RSIL-B

by Wolf Tooth

—$99.99

Cane Creek Headset Uppers Replaces 110 Traditional headset top External Cup (EC) assemblies feature press-in cups with bearings outside the frame Internally contoured and relieved cups and covers minimize weight and maximize strength Top-quality polishing, anodizing and laser etching Low-friction top cover seal completely seals cup from solid and liquid contaminants Fully captured top cover - no loose parts Updated compression ring design further enhances "carbon friendly" uses by evenly distributing clamping forces on the steerer Interlok spacer compatible Item Specifications Color Black Weight 55.2g Material AL-7075 Stack Height 16mm Bearing Type Stainless Steel S.H.I.S Upper EC34 S.H.I.S. Clamp Diameter 28.6 Cane Creek 110 EC Headset Upper UPC: 840226097862 MPN: BAA0165K

by Cane Creek

—$107.99

Building upon Cane Creek's ongoing legacy of bicycle headset innovation, the Hellbender 70 Visco brings patented steering stabilizing technology to a wide variety of cycling disciplines. Designed to reduce high-frequency oscillation of the bicycle steering assembly, known as speed wobble. The Cane Creek Hellbender 70 Visco headset helps riders maintain control, reduce fatigue and ride with confidence. Stabilized steering with Cane Creek s Patented headset damping technology; utilizing Micro-thin plates with fluorocarbon gel in between Includes a pre-set mid-tune damping, each layer; Damping effects are tunable for rider preference 7075 T6 Aluminum construction Sealed, stainless-steel Hellbender bearings Item Specifications Bearing Type Cartridge Color Black Defined Color List Black Material Aluminum S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Cane Creek Hellbender 70 Visco Upper Headset Headset Upper UPC: 840226079790 MPN: BAA2187K

by Cane Creek

—$74.95

Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and 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 Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Lifetime warranty Item Specifications Bearing Type Cartridge Bearing Type Stainless Steel Color Gold S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 6 Wolf Tooth Premium ZS Upper Headset Headset Upper UPC: 812719027656 MPN: ZS44U-5MM-GLD

by Wolf Tooth

—$74.95

Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and 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 Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut 5mm top cover = 16mm total stack O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Lifetime warranty Item Specifications Bearing Type Cartridge Bearing Type Stainless Steel Color Black S.H.I.S Upper EC34 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 16 Wolf Tooth Premium EC Upper Headset Headset Upper UPC: 812719027113 MPN: EC34U-5MM-BLK

by Wolf Tooth

—$33.95

A key component of the new Ritchey WCS Switch System, the WCS Switch Upper Headset upper is designed to specifically work with the Ritchey Switch Stem to route cables, wires and hydraulic lines from the handlebar through to the bicycle frame. Cables are routed from the handlebar into the headset conduit, which sits on the underside of the Switch Stem and then travel through an opening on the front of the WCS Switch headset spacers before passing through two channels on the top of the headset and into the frame. This system allows headset bearings to perform without any interference from cables, wires, or lines passing through the headtube. The Ritchey Switch System is an innovative integrated system designed to easily conceal internally routed cables, wires, and hydraulic lines from the handlebar into bicycle frames with straight 1.5" head tubes together with tapered 1-1/8" 1.5" forks. The Switch System consists of three elements: Switch Headset, Headset Spacers and Adapters (Sold Separately) Requires a bearing insertion depth of 8.7mm for the closest fit, please check with your frame manufacturer for compatibility 5mm x 2pc interlocking spacers included Compression cap sold separately Item Specifications Bearing Type Sealed Cartridge Color Black Defined Color List Black Material Composite S.H.I.S Upper IS52 S.H.I.S. Stem Clamp Diameter 28.6 Threadless Stack Height 21.7 Weight 54 Ritchey WCS Switch Upper Headset Headset Upper UPC: 796941333191 MPN: 33030817024

by Ritchey

—$39.95

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, durability and corrision resistance Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Bearing top cap outer diameter: 45.8mm Item Specifications Bearing Type Black Oxide Steel Color Raw Silver Defined Color List Silver S.H.I.S Upper IS41 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 7 Weight 52 Wolf Tooth Performance IS Upper Headset Headset Upper UPC: 810006809831 MPN: IS41U-5MM-RSIL-B

by Wolf Tooth

—$94.95

MK0 items represent a refined approach to component engineering, with special consultation with Team Visma Lease A Bike. Each top cap spends 4x more time in Wolf Tooth's CNC lathe, before undergoing thorough QC inspection, and anodizing in the new Shadow Gray color. The extra machining and new profile of the MK0 upper headsets have meaningful gains and result in a 44% reduction in aluminum weight without compromising strength and durability. These super slammed 4mm stack upper headsets feature extraordinary sealing to prevent water intrusion and provide protection for the premium Enduro stainless steel sealed bearings. MK0 IS upper headset feature a super low 4mm of stack made possible by the extra machining and new profile that result in a 44% reduction in aluminum weight without compromising strength and durability O-ring seal prevents water intrusion around steerer tube to eliminate corrosion that results in longevity of the headset Custom-molded upper lip seal provides additional protection for the premium Enduro stainless steel upper 36 x 45 degree beveled angle bearing Ships with a star nut which can only be used on forks with steel or aluminum steerer tubes (Carbon steerer tubes require a compression plug and are sold separately) MK0 IS upper headset includes stem cap, custom hollow bolt, starnut and Enduro stainless steel sealed bearings Item Specifications Bearing Type Cartridge Color Shadow Gray Defined Color List Gray Material Aluminum Material Stainless Steel S.H.I.S Upper IS41 S.H.I.S. Stem Clamp Diameter 28.6 Stack Height 4 Upper Stack Height 4 Weight 29 Wolf Tooth MK0 IS Upper Headset Headset Upper UPC: 810159403467 MPN: IS41U-5MM-MK0-SGR

by Wolf Tooth

—$35.95

A key component of the new Ritchey WCS Switch System, the WCS Switch Upper Headset upper is designed to specifically work with the Ritchey Switch Stem to route cables, wires and hydraulic lines from the handlebar through to the bicycle frame. Cables are routed from the handlebar into the headset conduit, which sits on the underside of the Switch Stem and then travel through an opening on the front of the WCS Switch headset spacers before passing through two channels on the top of the headset and into the frame. This system allows headset bearings to perform without any interference from cables, wires, or lines passing through the headtube. The Ritchey Switch System is an innovative integrated system designed to easily conceal internally routed cables, wires, and hydraulic lines from the handlebar into bicycle frames with straight 1.5" head tubes together with tapered 1-1/8" 1.5" forks. The Switch System consists of three elements: Switch Headset, Headset Spacers and Adapters (Sold Separately) Requires a bearing insertion depth of 8.7mm for the closest fit, please check with your frame manufacturer for compatibility 5mm x 2pc interlocking spacers included Compression cap sold separately Item Specifications Bearing Type Sealed Cartridge Color Black Defined Color List Black Material Composite S.H.I.S Upper ZS56 S.H.I.S. Stem Clamp Diameter 28.6 Threadless Stack Height 23.7 Weight 54 Ritchey WCS Switch Upper Headset Headset Upper UPC: 796941333207 MPN: 33030817025

by Ritchey

—$54.95

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, durability and corrision resistance Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Item Specifications Bearing Type Black Oxide Steel Color Ultraviolet Purple Defined Color List Purple S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 6 Weight 58 Wolf Tooth Performance ZS Upper Headset Headset Upper UPC: 810159401074 MPN: ZS44U-5MM-PRU-B

by Wolf Tooth

—$44.95

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, durability and corrision resistance Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Bearing top cap outer diameter: 45.8mm Item Specifications Bearing Type Black Oxide Steel Color Ultraviolet Purple Defined Color List Purple S.H.I.S Upper IS41 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 7 Weight 52 Wolf Tooth Performance IS Upper Headset Headset Upper UPC: 810159401173 MPN: IS41U-5MM-PRU-B

by Wolf Tooth

—$59.95

Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and 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 Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Lifetime warranty Item Specifications Bearing Type Stainless Steel Color Raw Silver Defined Color List Silver S.H.I.S Upper IS41 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 7 Weight 52 Wolf Tooth Premium IS Upper Headset Headset Upper UPC: 810006809848 MPN: IS41U-5MM-RSIL

by Wolf Tooth

—$113

The Chris King AeroSet upper cup and bearing combines seamless design and legendary quality in an external upper cup that is built with precision and equipped with their exclusive built-in-house bearings. External upper cup is built with precision using premium aluminum Legendary made-in-house bearings provide uncompromising smoothness and longevity Engineered, manufactured and assembled in Portland, OR For use with Chris King AeroSet headsets ONLY Item Specifications Bearing Type Cartridge Color Gold Material Aluminum Chris King AeroSet Headset Upper Cup and Bearing Headset Upper UPC: 841529278873 MPN: PHS624Y2

by Chris King

—$94.95

MK0 items represent a refined approach to component engineering, with special consultation with Team Visma Lease A Bike. Each top cap spends 4x more time in Wolf Tooth's CNC lathe, before undergoing thorough QC inspection, and anodizing in the new Shadow Gray color. The extra machining and new profile of the MK0 upper headsets have meaningful gains and result in a 44% reduction in aluminum weight without compromising strength and durability. These super slammed 4mm stack upper headsets feature extraordinary sealing to prevent water intrusion and provide protection for the premium Enduro stainless steel sealed bearings. IS42 is not compatible with Specialized mountain bikes or bikes using the Campagnolo Hiddenset standard MK0 IS upper headset feature a super low 4mm of stack made possible by the extra machining and new profile that result in a 44% reduction in aluminum weight without compromising strength and durability O-ring seal prevents water intrusion around steerer tube to eliminate corrosion that results in longevity of the headset Custom-molded upper lip seal provides additional protection for the premium Enduro stainless steel upper 36 x 45 degree beveled angle bearing Ships with a star nut which can only be used on forks with steel or aluminum steerer tubes (Carbon steerer tubes require a compression plug and are sold separately) MK0 IS upper headset includes stem cap, custom hollow bolt, starnut and Enduro stainless steel sealed bearings Item Specifications Bearing Type Cartridge Color Shadow Gray Defined Color List Gray Material Aluminum Material Stainless Steel S.H.I.S Upper IS42 S.H.I.S. Stem Clamp Diameter 28.6 Stack Height 4 Upper Stack Height 4 Weight 30 Wolf Tooth MK0 IS Upper Headset Headset Upper UPC: 810159403573 MPN: IS42U-5MM-MK0-SGR

by Wolf Tooth

—$35.95

A key component of the new Ritchey WCS Switch System, the WCS Switch Upper Headset upper is designed to specifically work with the Ritchey Switch Stem to route cables, wires and hydraulic lines from the handlebar through to the bicycle frame. Cables are routed from the handlebar into the headset conduit, which sits on the underside of the Switch Stem and then travel through an opening on the front of the WCS Switch headset spacers before passing through two channels on the top of the headset and into the frame. This system allows headset bearings to perform without any interference from cables, wires, or lines passing through the headtube. The Ritchey Switch System is an innovative integrated system designed to easily conceal internally routed cables, wires, and hydraulic lines from the handlebar into bicycle frames with straight 1.5" head tubes together with tapered 1-1/8" 1.5" forks. The Switch System consists of three elements: Switch Headset, Headset Spacers and Adapters (Sold Separately) Requires a bearing insertion depth of 8.7mm for the closest fit, please check with your frame manufacturer for compatibility 5mm x 2pc interlocking spacers included Compression cap sold separately Item Specifications Bearing Type Sealed Cartridge Color Black Defined Color List Black Material Composite S.H.I.S Upper ZS55 S.H.I.S. Stem Clamp Diameter 28.6 Threadless Stack Height 23.7 Weight 54 Ritchey WCS Switch Upper Headset Headset Upper UPC: 796941333214 MPN: 33030817026

by Ritchey

—$54.95

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, durability and corrision resistance Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut 5mm top cover = 16mm total stack O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Item Specifications Bearing Type Stainless Steel Color Ultraviolet Purple Defined Color List Purple S.H.I.S Upper EC34 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 16 Weight 64 Wolf Tooth Performance EC Upper Headset Headset Upper UPC: 810159401111 MPN: EC34U-5MM-PRU-B

by Wolf Tooth

—$74.95

Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and 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 Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut 5mm top cover = 16mm total stack O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Lifetime warranty Item Specifications Bearing Type Black Oxide Steel Color Ultraviolet Purple Defined Color List Purple S.H.I.S Upper EC34 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 16 Weight 64 Wolf Tooth Premium EC Upper Headset Headset Upper UPC: 810159401104 MPN: EC34U-5MM-PRU

by Wolf Tooth

—$74.95

Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and 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 Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Lifetime warranty Item Specifications Bearing Type Stainless Steel Color Ultraviolet Purple Defined Color List Purple S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 6 Weight 58 Wolf Tooth Premium ZS Upper Headset Headset Upper UPC: 810159401067 MPN: ZS44U-5MM-PRU

by Wolf Tooth

—$64.95

Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and 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 Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut O-ring seal prevents water intrusion around the steerer tube Custom-molded upper lip seal provides additional protection for upper bearing Lifetime warranty Item Specifications Bearing Type Stainless Steel Color Ultraviolet Purple Defined Color List Purple S.H.I.S Upper IS41 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 7 Weight 52 Wolf Tooth Premium IS Upper Headset Headset Upper UPC: 810159401166 MPN: IS41U-5MM-PRU

by Wolf Tooth