Headsets

For bikes featuring integrated headsets (such as the Ritchey Road Logic and Swiss Cross), the WCS Drop In Integrated Headset stands above all others. This carbon fiber beauty features full-complement stainless steel angular contact cartridge bearings packed with Ritchey high-webbing grease. - Top cap: 8.3mm - Material: Alloy - Upper Fit (S.H.I.S.): IS42/28.6 - Upper Bearing OD: 41.8 - Top Cover OD: 46mm - Bearing: Sealed cartridge, Ti-coated - Weight: 36g

The Ritchey Comp Cartridge Drop In Integrated headset upper features full-complement, stainless steel, angular contact, sealed cartridge bearings packed with Ritchey high-webbing grease. - "Size" = Top cap height - Material: Alloy - Upper Fit (S.H.I.S.): IS42/28.6 - Upper Bearing OD: 41.8 - Top Cover OD: 46 - Bearing: Sealed cartridge - Weight: 35-44g

For bikes with press-fit head tubes, the Ritchey Comp Press Fit headset stands out above all others. The Comp features full-complement, stainless steel, angular contact cartridge bearings packed with Ritchey high-webbing grease. Both bearings are sealed cartridge, and the lower bearing is coated in titanium. - Material: CroMo - Upper Bearing: Sealed cartridge - Lower Bearing: Ti coated, sealed cartridge

Designed for bicycles with press-fit headsets, the Classic Press Fit Upper Headset features full-complement stainless steel angular contact cartridge bearings packed with Ritchey high-webbing grease. Wrapped in our timeless high-polish finish, the Classic Press Fit Upper headset adds that classy detail your bike deserves. - Top cap: 7.3 - Material: Alloy - Upper Fit (S.H.I.S.): ZS44/28.6 - Upper HT OD/ID: 50/44mm - Bearing: Sealed cartridge - Finish: High-polish silver - Weight: 43g (7.3mm)

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 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

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 - 2 Degree Adjustment - Short version is designed for headtube lengths between 90 - 115 mm

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 - 2 Degree Adjustment - Long version is designed for headtube lengths between 115 - 140mm

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

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

Why We Make This Headtube and fork steerer standards have proliferated in recent years, but for a long, long time these variables were more fixed, so we made thousands upon thousands of NoThreadsets™ to serve bikes with unthreaded fork steerers. We made them in a variety of diameters, and everyone was happy in the land. We still make it, because it’s still a great headset for all those bikes that are still rolling through the world with a headset that will never die. Why You Want It For decades our NoThreadSet™ set the standard for quality headset function delivering precision performance to numerous world champions, grand tour winners, and aspiring riders around the world. Every Chris King headset is built with our heat-treated bearings, and surgical-grade steel races machined simultaneously to ensure they are perfectly matched. As Chris King bearing tracks age and burnish, they actually get smoother, and all headsets are fully serviceable for years upon years of demanding riding. - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - Patented GripLock® retention design for dependable headset adjustment (US Patent 8662517) (1-1/8” only) - Available in 8 beautifully anodized colors in both bold and sotto voce marking options - Responsibly lightweight - Options to fit 1” and 1-1/8” straight steerer tubes

Why We Make It Maybe we’re just a bunch of old softies, but the GripNut told the world we meant business when it came to headsets, and there are still a kajillion of them out in the world, giving good, daily service. It’s hard to talk about sustainability and not keeping making a cornerstone product like this one. Why You Want It You want to ride that classic bike of yours forever, and we don’t blame you. Our GripNut™ headset is designed for threaded forks that don’t require a cable hanger or additional spacers, allowing us to build a low stack height threaded headset with a unique collet locking system that stays securely adjusted. Every Chris King headset is built with our heat-treated bearings, and surgical-grade steel races machined simultaneously to ensure they are perfectly matched. As Chris King bearing tracks age and burnish, they actually get smoother, and all headsets are fully serviceable for years upon years of demanding riding. External upper and lower cups with the iconic, Chris King rounded profile adds timeless style to even the most modern bike. - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - GripNut™ proprietary collet retention system - Options for 1” or 1-1/8” straight steerer tubes

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 40-Series headsets. • Technical Description: ZS56/30/H4/K • Bottom Type: ZS - ZeroStack • Bottom Head Tube Inside Dia.: 55.95mm • Crown Race Seat Dia.: 30.015mm • Crown Race Type: Steel, Face-Sealed • Bottom Stack Height: 4mm • Bottom Bearing Type: Black Oxide, Sealed • Material: 6061 aluminum • Weight: 88g

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: IS52/40/H1 • Bottom Type: IS - Integrated • Bottom Head Tube Inside Dia.: 52.1mm • Crown Race Seat Dia.: 39.79mm • Crown Race Type: Polymer • Bottom Stack Height: 1mm • Bottom Bearing Type: Black Oxide • Material: N/A • Weight: 35.35g

- Steel cups - Steel retainer bearings - Available in chrome or black - Steerer Dia: 25.4mm - Cup Dia: 30mm

- 3-piece expander design provides a secure fit within carbon steerer tubes - 22-25mm range of expansion - 50mm height reinforces carbon steerer tube beneath the stem - New design evenly distributes headset compression forces - Lightweight AL6061 alloy construction - Stainless steel bolt

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

The Origin8 Twistr Integrated Headset features highly polished sealed angular contact premium bearings ensure smooth operation. Its CNC-machined AL6061 top cover is sealed to keep moisture and grit away from the bearings, while the CNC-machined AL7075 crown race protects the lower bearings and fork. - AL6061 top cap - Forged stainless steel bolt - Includes star nut

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 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 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)

Hellbender 70 Slam Top Assembly headset.

Hellbender 70 Lite headset.

Origin-8's Pro Fit Threadless Headset is made of light and durable aluminum and boasts smooth and long-lasting sealed cartridge bearings. It also sports nice laser-etched logos.

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

Origin-8's SSR Threadless Headset is for 1 1/8-inch threadless forks. It features CNC machined 7075-aluminum cups and stainless-steel cartridge bearings for excellent performance and long life. It also comes in many colors to customize your ride. - 93g including star nut and laser top cap - Stack Height: 28.5mm **Anodized colors will vary from batch to batch and may not match exactly - S.H.I.S.: EC34/28.6|EC34/30

- 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 Inset headset offers Chris King's trademark quality and durability in a low-stack configuration sized for contemporary headtube dimensions. King's legendary made-in-house bearings still form the centerpiece of the Inset headsets, with precisely machined aluminum cups and headset caps available in all ten classic Chris King colors. The Inset 2 is compatible with tapered 1-1/8 - 1-1/2-inch forks and frames using a 44/56mm headtube.

Drop in lower assembly with crown race. - 45/45 degree angular contact bearing - Titanium coated for corrosion resistance

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

- Fork crown race for genuine Ritchey headsets - Alloy with 45-degree taper

-Tapered OD2 MTB headset (2012-2016)

- CrMo headset with oversized 3/16" lower ball bearings, 5/32" upper bearings and a nylon top cover - Hammer: External Cup, traditional - S.H.I.S.: EC34/28.6|EC34/30 - Stack: 12.8mm/11.9mm - Color: Black - Weight: 149g

• Sealed cartridge bearings • CNC machined 6061-T6 aluminum cups with laser etched logos • 26.4mm & 27.0mm races included • S.H.I.S.: EC30/25.4-24tpi|EC30/26 • Steerer Diameter: 25.4mm • Cup Diameter: 30.2mm • Race Diameter: 26.4mm • Stack Height: 42.5mm • Size: 1-inch • Black or Silver • Weight: 110g including lock nut

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

Cane Creek's AngleSet transforms your ride. It enables an effective head-tube angle adjustment of up to +/- 1.5-degrees so you can fine-tune your mountain bike's front-end handling to best suit your riding style, local terrain and race course. Installation is straightforward because the AngleSet automatically adjust to fit different head tube lengths and angles. All AngleSet headsets have light, tough, and beautiful machined 7075 T6-aluminum cups with Cane Creek's corrosion-resistant black-oxide sealed bearings and quality seals throughout to keep the grease in and the dirt out.

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)

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek headsets. The 110 Series has light, tough, and beautiful machined 7075 T6-aluminum cups that are contoured and relieved for even more gram shaving and strength. You also get top-quality split-lip sealed stainless-steel bearings, a carbon-friendly captured compression ring and a dual-sealed crown race and complete upper bearing seal to keep the grease in and the dirt out. What's more, the seals are low-friction to improve steering performance and there are no loose headset parts so maintenance is easy. The 110 comes with an amazing 110-year, no-questions-asked warranty too!

The Ritchey Comp Cartridge Drop In Integrated headset lower features full-complement, stainless steel, angular contact, sealed cartridge bearings packed with Ritchey high-webbing grease. - Material: Alloy - Bearing: Sealed cartridge - Weight: 39g

Chris King DropSet 3 Headset. - Crown Race: 30 - S.H.I.S. Stem Clamp Diameter: 28.6 Threadless - Bearing Type: Cartridge - S.H.I.S Lower: IS52 - S.H.I.S Upper: IS41

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.

Cane Creek 40 EC Headset Lowers - Compatible with tapered 1-1/8" to 1-1/4" steerer tubes

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. Zero stack cups press into the head tube with very little stack height. - Sealed black oxide bearings - Steel crown race with integrated seals

For bikes featuring integrated headsets (such as the Ritchey Road Logic and Swiss Cross), the Classic Drop-In Integrated Headset stands above all others. This alloy beauty features full-complement stainless steel angular contact cartridge bearings packed with Ritchey high-webbing grease. Wrapped in our timeless high-polish finish, the Classic Drop-In Upper headset adds that classy detail your bike deserves. - Stack height: 12.5mm - Material: Alloy - Upper Fit (S.H.I.S.): ZS44/28.6 - Upper HT OD/ID: 50/44 - Bearing: Ceramic Hybrid Cartridge (ACB)—Ti Coated - Weight: 79g

- 1-1/8" / 1.5", 36°/ 45° ACB - For tapered 50mm / 62mm OD head tube - For 1-1/8" to 1.5" tapered fork - Alloy top cover - Upper: Forged alloy cup with ACB (black seal) - Lower: 1.5" CNC machined alloy cup with ACB (black seal) - Stack Height 16.9+2.9=19.8mm - 124.6 grams

FSA ACR (Aerodynamic Cable Routing) Headsets are suitable for both road and MTB riding styles and feature angular contact bearings. - A fully integrated cable routing - No rotation limit - ACR top cover - Angular contact bearing - Specific frame required - 1.5" headtube - 36°/45° ACB - For 55.8mm OD headtube - For 1-1/8" to 1.5" tapered fork - Stack height 10.4+0.5=10.9

Replacement headset uppers from FSA - Internal HS Upper Orbit-Z - Steerer diameter: 1-1/8" - ZS44/28.6 (36 x 45) - 5.3/13.1mm

For bikes featuring integrated headsets (such as the Ritchey Road Logic and Swiss Cross), the WCS Drop In Integrated Headset stands above all others. This alloy headset lower features stainless steel angular contact sealed cartridge bearings with a titanium coating for corrosion resistance, and they're packed with Ritchey high-webbing grease. - Material: Alloy - Bearing: Sealed cartridge, Ti-coated - Weight: 28-35g

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 110 Series headsets. • Technical Description: EC34/28.6/H16/x • Top Type: EC - External Cup • Top Head Tube Inside Dia.: 34mm • Stem Clamp Dia.: 28.6mm • Top Stack Height: 16mm • Top Bearing Type: Top-quality, sealed stainless steel bearings • Material: 7075 aluminum • Weight: 55.26g

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 110 headsets. - Technical Description: EC34/30/H12/x - Bottom Type: EC - External Cup - Bottom Head Tube Inside Dia.: 33.95mm - Crown Race Seat Dia.: 30.015mm - Crown Race Type: Aluminum, Dual-Seal - Bottom Stack Height: 12mm - Bottom Bearing Type: Top-quality, sealed stainless steel bearings - Material: 7075 aluminum - Weight: 42.20g

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|EC44/40 • Top Type: ZS - ZeroStack • Top Head Tube Inside Dia.: 44.0mm • Stem Clamp Dia.: 28.6mm • Top Stack Height: 8mm • Top Bearing Type: Black Oxide, Sealed • Bottom Type: EC - External Cup • Bottom Head Tube Inside Dia.: 44.0mm • Crown Race Seat Dia.: 39.79mm • Crown Race Type: Steel, Face-Sealed • Bottom Stack Height: 12mm • Bottom Bearing Type: Black Oxide, Sealed • Material: 6061 aluminum

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 40-Series headsets. • Technical Description: EC49/40/H12/K • Bottom Type: EC - External Cup • Bottom Head Tube Inside Dia.: 49.61mm • Crown Race Seat Dia.: 39.79mm • Crown Race Type: Steel, Face-Sealed • Bottom Stack Height: 12mm • Bottom Bearing Type: Black Oxide, Sealed • Material: 6061 aluminum • Weight: 76g

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).

- 3-piece expander design provides a secure fit within carbon steerer tubes - 22-25mm range of expansion - 50mm height reinforces carbon steerer tube beneath the stem - New design evenly distributes headset compression forces - Lightweight AL6061 alloy construction - Stainless steel bolt

ABI Headset Bearing for new builds or replacements.

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

Grade 300 retainer bearings for headset and bottom bracket service - 5/32" ball diameter - 20 balls per retainer - Grade 300 Bearings - 10 Retainers/Bag

Why We Make This Contemporary bicycle frame designs are incorporating larger diameter headtubes and forks with tapered-steerers to improve the bike’s front end stiffness, and as a result handling accuracy. This move has made particular sense for off-road bikes. We evolved the form and function of our legendary NoThreadset to address the variety of tapered steerers and headtubes on the market today. Why You Want It Every Chris King headset is built with our heat-treated bearings, and surgical-grade steel races machined simultaneously to ensure they are perfectly matched. As Chris King bearing tracks age and burnish, they actually get smoother, and all headsets are fully serviceable for years upon years of demanding riding. Built for the next generation of tapered road forks the Chris King InSet™ 8 is built to fit contemporary road and cross bikes that utilize 1-1/8” to 1-1/4”tapered steerer tubes and a 44mm headtube. Our InSet™ 8 combines our exclusive Chris King built bearings and our GripLock® retention system for unequalled riding quality. - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - Patented GripLock® retention design for dependable headset adjustment (US Patent 8662517) - Responsibly lightweight - Designed specifically for a 44mm straight headtube and a 1-1/8” to 1-1/4” tapered steerer tube

This is the Short Top Cover for the Cane Creek 110 Series ZeroStack headset. Please contact us if you have any questions about which parts are correct for your headset. - For 1 1/8-inch fork/headset - Stack height: 8mm - 53 grams

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