—$8.75

Available in the most common sizes and thicknesses-in small or bulk quantities, Problem Solvers headset spacers help riders get their stack height just right. Sold Each, Black 1-1/8" Diameter Made from Aluminum, anodized or polished finish, without logos Item Specifications Color Black Defined Color Black Material Aluminum S.H.I.S. Stem Clamp Diameter 28.6 Thickness 20 Problem Solvers Headset Spacers Headset Stack Spacer UPC: 708752279544

by Problem Solvers

—$99.99

Cane Creek headsets with Hellbender stainless steel bearings with increased sealing elements and more grease in relation to the comparable 110 bearing.Designed to bridge the gap between the 40-series and 110-series headsets Item Specifications Bearing Type Cartridge Color Black 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 Cane Creek Hellbender Headset Headsets UPC: 840226078564

by Cane Creek

—$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: 841529031683

by Chris King

—$15.69

Cane Creek Crown Races Compatible across 10, 40 and 110 Series headsets and backwards compatible with S and XX Series All crown races feature integral molded seals Cane Creek Crown Races Crown Race UPC: 840226076928

by Cane Creek

—$19.13

Add some color and style to your bike build with Precision Headset Stack spacers. Offered in multiple sizes, made proudly in Minneapolis, MN, and laser marked with the stack size on each end, find your perfect fit. Designed and manufactured in the Minneapolis, MN USA Fits 1-1/8"" steerers only Made from 6061-T6 Aluminum Item Specifications Color Red Defined Color Red Material Aluminum S.H.I.S. Stem Clamp Diameter 28.6 Thickness 10 Thickness 15 Thickness 3 Thickness 5 Wolf Tooth Precision Spacer Kit Headset Stack Spacer UPC: 812719022514

by Wolf Tooth

—$33.99

40-Series replacement cartridge bearings feature durable zinc construction.Compatible with 110-, 40-, and 10-Series headsets Item Specifications Bearing I.D. (mm) 42 Bearing O.D. (mm) 52 Bearing Type Cartridge Cartridge Bearing Angle 45x45 Thickness 7 Cane Creek ZN40-Series Bearing Headset Bearing UPC: 840226078465

by Cane Creek

—$21

RockShox Carbon Headset Spacers Includes 5mm (x2), 10mm, and 15mm spacers UD carbon fiber finish Item Specifications Color Carbon Defined Color Black Material Carbon S.H.I.S. Stem Clamp Diameter 28.6 RockShox Carbon Spacer Set Headset Stack Spacer UPC: 710845674327

by RockShox

—$13.55

Cane Creek Crown Races Compatible across 10, 40 and 110 Series headsets and backwards compatible with S and XX Series All crown races feature integral molded seals Cane Creek Crown Races Crown Race UPC: 840226076652

by Cane Creek

—$64.99

Cane Creek 110 IS Headset LowersIntegrated (IS) assemblies feature chamfers molded inside the head-tube with no press-in cups Item Specifications Color Black Weight 37.6g Material Aluminum Crown Race 39.7 Stack Height 1mm Bearing Type Stainless Steel S.H.I.S Lower IS52 Cane Creek 110-Series IS - Integrated Headset Headset Lower UPC: 840226096186

by Cane Creek

—$15.49

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 Wolf Tooth Ultralight Stem Cap with Integrated Spacer Headset Top Cap UPC: 812719020657

by Wolf Tooth

—$24.75

ABI Headset Bearing for new builds or replacements. Item Specifications Bearing I.D. (mm) 30.2 Bearing O.D. (mm) 41 Bearing Type Cartridge Cartridge Bearing Angle 36x45 Thickness 6.5 Enduro Headset Bearing Headset Bearing UPC: 811780022041

by Enduro

—$14.30

Wheels Manufacturing Headset Bearings Item Specifications Bearing Type Retainer Bearing Wheels Manufacturing Headset Bearing Retainers Headset Bearing UPC: 836572001813

by Wheels Manufacturing

—$18

There are a lot of things you don't need to buy for your bike, but this state of the art stem cap is not one of those useless things. It was designed with you, yes you, in mind. Molded around the tightest molecular combination of polymers, this stem cap makes you more aerodynamic than a B-2 spirit stealth bomber. Don't know what that is? Look it up. No. Don't waste time. Buy this stem cap and go race down a mountain, or a hill, or your driveway. Who cares? Go ride your bike. Worldwide Cyclery Top Cap Headset Top Cap

by Worldwide Cyclery

—$15.49

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 Item Specifications Crown Race 30 Cane Creek Crown Races Crown Race UPC: 840226077802

by Cane Creek

—$21.95

The absoluteBLACK integrated headset top cap is a one-piece top cap and bolt, with 5mm hex socket. It is designed to fit every standard starnut. One piece design is lightweight (only 4g) Not suitable for "expanding" star nuts with a steel coil spring Compatible with the ENVE compression plug Item Specifications Color Black Defined Color Black Includes Star Nut No absoluteBLACK Integrated Headset Top Cap and Bolt Headset Top Cap EAN: 5110846001897

by absoluteBLACK

—$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 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 Threadless Upper Stack Height 6 Wolf Tooth Performance ZS Upper Headset Headset Upper UPC: 810006803457

by Wolf Tooth

—$32

ABI Headset Bearing for new builds or replacements. Item Specifications Bearing I.D. (mm) 40 Bearing O.D. (mm) 52 Bearing Type Cartridge Cartridge Bearing Angle 45x45 Thickness 7 Enduro Headset Bearing Headset Bearing UPC: 811780023130

by Enduro

—$18.50

Aluminum headset stack spacers precision cut to ensure proper headset function.Precision cut for proper function Item Specifications Color Black Defined Color Black Material Aluminum S.H.I.S. Stem Clamp Diameter 28.6 Thickness Assorted Wheels Manufacturing Aluminum Spacer Headset Stack Spacer UPC: 811079026637

by Wheels Manufacturing

—$11.99

Problem Solvers Headset Top Caps Item Specifications Color Black S.H.I.S. Clamp Diameter 28.6 Problem Solvers Top Caps Headset Top Cap UPC: 708752073753

by Problem Solvers

—$19.13

Add some color and style to your bike build with Precision Headset Stack spacers. Offered in multiple sizes, made proudly in Minneapolis, MN, and laser marked with the stack size on each end, find your perfect fit. Designed and manufactured in the Minneapolis, MN USA Fits 1-1/8"" steerers only Made from 6061-T6 Aluminum Item Specifications Color Purple Defined Color Purple Material Aluminum S.H.I.S. Stem Clamp Diameter 28.6 Thickness 10 Thickness 15 Thickness 3 Thickness 5 Wolf Tooth Precision Spacer Kit Headset Stack Spacer UPC: 812719022552

by Wolf Tooth

—$13.20

The No.7 Carbon headset stack spacers save weight and add style to any bike. 5-packs available in matte or gloss finish, with multiple sizes to choose from. 5-Pack of 2.5mm spacers Matte finish Full unidirectional carbon construction 5 year Whisky warranty Item Specifications Defined Color Black Whisky Parts Co. No.7 Carbon Headset Spacers 5-Pack Headset Stack Spacer UPC: 708752168107

by Whisky Parts Co.

—$19.13

Add some color and style to your bike build with Precision Headset Stack spacers. Offered in multiple sizes, made proudly in Minneapolis, MN, and laser marked with the stack size on each end, find your perfect fit. Designed and manufactured in the Minneapolis, MN USA Fits 1-1/8"" steerers only Made from 6061-T6 Aluminum Item Specifications Color Gold Defined Color Gold Material Aluminum S.H.I.S. Stem Clamp Diameter 28.6 Thickness 10 Thickness 15 Thickness 3 Thickness 5 Wolf Tooth Precision Spacer Kit Headset Stack Spacer UPC: 812719022545

by Wolf Tooth

—$8.65

Available in the most common sizes and thicknesses-in small or bulk quantities, Problem Solvers headset spacers help riders get their stack height just right. Sold Each, Black 1-1/8" Diameter Made from Aluminum, anodized or polished finish, without logos Item Specifications Color Black Defined Color Black Material Aluminum S.H.I.S. Stem Clamp Diameter 28.6 Thickness 15 Problem Solvers Headset Spacers Headset Stack Spacer UPC: 708752279667

by Problem Solvers

—$13.20

The No.7 Carbon headset stack spacers save weight and add style to any bike. 5-packs available in matte or gloss finish, with multiple sizes to choose from. 5-Pack of 5mm spacers Gloss finish Full unidirectional carbon construction 5 year Whisky warranty Item Specifications Defined Color Black Whisky Parts Co. No.7 Carbon Headset Spacers 5-Pack Headset Stack Spacer UPC: 708752168077

by Whisky Parts Co.

—$104.95

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. 1 Degree Adjustment Long version is designed for headtube lengths between 115 - 140 mm 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 Item Specifications Bearing Type Cartridge Color Black Crown Race 40 Defined Color Black Lower Stack Height 4.4 Material Alloy S.H.I.S Lower ZS56 S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Threadless Stack Height 10.9 Upper Stack Height 6 Wolf Tooth GeoShift Performance Angle Headset Headsets UPC: 810006804645

by Wolf Tooth

—$74.99

Cane Creek 40-Series. 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. Replaces Cane Creek XXc Flush and XXcII Flush headsets Zero Stack (ZS) assemblies feature press-in cups with bearings inside the frame Item Specifications Color Black Weight 115g Material AL-6061 Crown Race 30.0 Stack Height 16mm Bearing Type Black Oxide Sealed Defined Color Black S.H.I.S Upper ZS49 S.H.I.S Lower ZS49 S.H.I.S. Clamp Diameter 28.6 Cane Creek 40-Series ZS - Zero Stack Headset Headsets UPC: 840226094908

by Cane Creek

—$63.99

40-Series Integrated 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. 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) 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 Crown Race 40 Lower Stack Height 1 S.H.I.S Lower IS52 S.H.I.S Upper IS42 S.H.I.S. Stem Clamp Diameter 28.6 Threadless Upper Stack Height 9 Cane Creek 40-Series IS - Integrated Headset Headsets UPC: 840226077734

by Cane Creek

—$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 Cartridge Bearing Type Stainless Steel Color Black S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Threadless Upper Stack Height 6 Wolf Tooth Premium ZS Upper Headset Headset Upper UPC: 812719027595

by Wolf Tooth

—$39.99

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

by Cane Creek

—$54.95

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 Custom-molded dual-lip seal on the crown race protects lower bearing in the toughest conditions Lifetime warranty Item Specifications Bearing Type Cartridge Bearing Type Stainless Steel Color Black Crown Race 40 S.H.I.S Lower ZS56 Wolf Tooth Premium ZS Lower Headset Headset Lower UPC: 812719027915

by Wolf Tooth

—$22.99

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 Item Specifications Crown Race 40 Cane Creek Crown Races Crown Race UPC: 840226078199

by Cane Creek

—$33.99

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. Compatible with straight 1-1/8" steerer tubes 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 Crown Race 30 Lower Stack Height 4 S.H.I.S Lower ZS44 Cane Creek 40-Series ZS - Zero Stack Headset Headset Lower UPC: 840226077406

by Cane Creek

—$30.99

Cane Creek 40 IS Bottom Assemblies IS52/30 Conversion Bottom fits 1-1/8" straight steerer tubes to tapered 52mm 1.5" IS bottom head-tubes Integrated (IS) assemblies feature chamfers molded inside the head-tube with no press-in cups Consistent stack heights across 10, 40 and 110 Series Internal parts are cross-compatible across 10, 40 and 110 series Durable steel crown race with low-friction face-seals Item Specifications Color Black Weight 72g Material AL-6061 Crown Race 30.0 Stack Height 1mm Bearing Type Black Oxide Sealed S.H.I.S Lower IS52 Cane Creek 40-Series IS - Integrated Headset Headset Lower UPC: 840226095226

by Cane Creek

—$17.60

Carbon fiber headset stack spacers, precision cut to ensure proper headset function.Compatible with all threadless and threaded headsets Item Specifications Color Matte Carbon Defined Color Black Material Carbon S.H.I.S. Stem Clamp Diameter 28.6 Thickness 5 Wheels Manufacturing Carbon Spacer Headset Stack Spacer UPC: 811079026361

by Wheels Manufacturing

—$16.99

Aluminum headset stack spacers precision cut to ensure proper headset function.Precision cut for proper function Item Specifications Color Black Defined Color Black Material Aluminum S.H.I.S. Stem Clamp Diameter 28.6 Thickness 5 Wheels Manufacturing Aluminum Spacer Headset Stack Spacer UPC: 811079026453

by Wheels Manufacturing

—$119.99

Cane Creek headsets with Hellbender stainless steel bearings with increased sealing elements and more grease in relation to the comparable 110 bearing.Designed to bridge the gap between the 40-series and 110-series headsets Item Specifications Bearing Type Cartridge Color Black Crown Race 40 S.H.I.S Lower EC44 S.H.I.S Upper ZS44 S.H.I.S. Stem Clamp Diameter 28.6 Threadless Cane Creek Hellbender Headset Headsets UPC: 840226078540

by Cane Creek

—$18

There are a lot of things you don't need to buy for your bike, but this state of the art stem cap is not one of those useless things. It was designed with you, yes you, in mind. Molded around the tightest molecular combination of polymers, this stem cap makes you more aerodynamic than a B-2 spirit stealth bomber. Don't know what that is? Look it up. No. Don't waste time. Buy this stem cap and go race down a mountain, or a hill, or your driveway. Who cares? Go ride your bike. Worldwide Cyclery Top Cap Headset Top Cap

by Worldwide Cyclery

—$21.15

Crown races for Wolf Tooth headsets.For Wolf Tooth headsets Item Specifications Crown Race 40 Wolf Tooth Crown Race Crown Race UPC: 812719028011

by Wolf Tooth

—$23

The No.7 Carbon headset stack spacers save weight and add style to any bike. 5-packs available in matte or gloss finish, with multiple sizes to choose from. 5-Pack of 10mm spacers Gloss finish Full unidirectional carbon construction 5 year Whisky warranty Item Specifications Defined Color Black Whisky Parts Co. No.7 Carbon Headset Spacers 5-Pack Headset Stack Spacer UPC: 708752168053

by Whisky Parts Co.

—$15.20

The Salsa Split Pivot Dropout Tool Top Cap is a 22mm socket designed for in-the-field derailleur hanger replacement of Salsa suspension frames featuring Split Pivot technology. The Dropout Tool is designed to double as a top cap for a standard threadless stem/headset assembly, so that it will always be conveniently available in the event of a hanger failure. This tool is intended for trailside repairs only. Once you return back to base, use a torque wrench to achieve the proper torque spec of 18Nm. This handy tool works as a headset top cap until you need it, and when combined with a 6mm hex wrench, turns into a socket for removing the Pivot Bolt to change your derailleur hanger For all Salsa Split Pivot suspension models Integrated 22mm socket design interfaces axle nut to field change the derailleur hanger Operated via 6mm hex key found on most mini tools Takes place of standard top cap Reduces the need to carry 22mm wrench or socket in your pack Lightweight, black anodized aluminum bolt included 13g Lightweight aluminum bolt Item Specifications Color Black Defined Color Black Includes Star Nut No S.H.I.S. Stem Clamp Diameter 28.6 Salsa Split Pivot Dropout Tool Top Cap Headset Top Cap UPC: 657993039540

by Salsa

—$34.95

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 and durability Custom-molded dual-lip seal on the crown race protects lower bearing in the toughest conditions Item Specifications Bearing Type Black Oxide Steel Bearing Type Cartridge Color Black Crown Race 40 S.H.I.S Lower ZS56 Wolf Tooth Performance ZS Lower Headset Headset Lower UPC: 810006803549

by Wolf Tooth

—$39.95

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. Lower Bearing, includes race Stainless Steel Bearings provide unparalleled corrosion resistance Highly recommended if your headset will be exposed to wet conditions or sweat Lifetime warranty Item Specifications Bearing Type Cartridge Bearing Type Stainless Steel Crown Race 40 S.H.I.S Lower IS52 Wolf Tooth Premium IS Lower Headset Headset Lower UPC: 812719028301

by Wolf Tooth

—$30

Imprecise spacers can cause your headset to loosen, affecting bike handling and component life. Lightweight and precisely parallel, Zipp carbon headset spacers are precision ground to keep your fork secure through every twist, turn and bump in the road. 1-1/8" diameter in 4 (x2), 8, 12, and 30 mm heights UD carbon fiber finish Item Specifications Color Carbon Defined Color Black Material Carbon S.H.I.S. Stem Clamp Diameter 28.6 Zipp Carbon Spacer Set Headset Stack Spacer UPC: 710845674655

by Zipp

—$20

Available in the most common sizes and thicknesses-in small or bulk quantities, Problem Solvers headset spacers help riders get their stack height just right. Bag of 10, Black 1-1/8" Diameter Made from Aluminum, anodized or polished finish, without logos Item Specifications Color Black Defined Color Black Material Aluminum S.H.I.S. Stem Clamp Diameter 28.6 Thickness 5 Problem Solvers Headset Spacers Headset Stack Spacer UPC: 708752291539

by Problem Solvers

—$13.40

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) 30.3 Bearing O.D. (mm) 41.8 Bearing Type Cartridge Cartridge Bearing Angle 45x45 Thickness 7 Cane Creek ZN40-Series Bearing Headset Bearing UPC: 840226152172

by Cane Creek

—$34

ABI Headset Bearing for new builds or replacements. Item Specifications Bearing I.D. (mm) 40 Bearing O.D. (mm) 51 Bearing Type Cartridge Cartridge Bearing Angle 36x36 Thickness 6.5 Enduro Headset Bearing Headset Bearing UPC: 810191012634

by Enduro

—$21.99

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 I.D. (mm) 34.25 Bearing O.D. (mm) 47 Bearing Type Cartridge Cartridge Bearing Angle 45x45 Thickness 7 Cane Creek ZN40-Series Bearing Headset Bearing UPC: 840226078373

by Cane Creek

—$20

Compression plug for Wolf Tooth headsets.Compatible with steerer tube inner diameter 23.2 mm to 24.2 mm Item Specifications Color Silver Wolf Tooth Compression Plug Compression Plug UPC: 812719028332

by Wolf Tooth

—$12.99

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 Item Specifications Crown Race 33 Cane Creek Crown Races Crown Race UPC: 840226077918

by Cane Creek

—$52.99

Cane Creek 40-Series. 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. Replaces Cane Creek IS-3 headset 41mm angular contact bearings feature 36degree inner chamfer, 45degree outer (36/45) Directly compatible with 41mm head-tube and fits 42mm (Italian) head-tube with supplied 0.25mm shim Integrated (IS) assemblies feature chamfers molded inside the head-tube with no press-in cups 9mm stack height (short) top cover Item Specifications Color Black Weight 71g Material AL-6061 Crown Race 30.0 Stack Height 9mm Bearing Type Black Oxide Sealed Defined Color Black S.H.I.S Upper IS41 S.H.I.S Lower IS41 S.H.I.S. Clamp Diameter 28.6 Cane Creek 40-Series IS - Integrated Headset Headsets UPC: 840226095042

by Cane Creek