The Ritchey Logic Comp threadless headset is constructed of steel and uses replaceable cartridge bearings. • Bearing Type: Cartridge • Color: Black • Crown Race: 30 • Defined Color: Black • Lower Stack Height: 13 mm • S.H.I.S Lower: EC34 • S.H.I.S Upper: EC34 • S.H.I.S. Stem Clamp Diameter: 28.6 • Upper Stack Height: 16.8 mm • Weight: 142 g

Origin-8's 1 1/8-inch Headset Spacers are made of lightweight and durable aluminum and come in 2mm, 5mm or 10mm thicknesses and lots of cool colors to add style to your ride. You get a bag of 10 spacers.

Origin-8's Carbon Fiber Headset Spacers are made of lightweight, durable carbon and come in 5mm, 10mm or 20mm thicknesses. You get a bag of five spacers.

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 110 headsets. • Technical Description: ZS44/30/H4/x • Bottom Type: ZS - ZeroStack • Bottom Head Tube Inside Dia.: 44.00mm • Crown Race Seat Dia.: 30.015mm • Crown Race Type: Aluminum, Dual-Seal • Bottom Stack Height: 4mm • Bottom Bearing Type: Top-quality, sealed stainless steel bearings • Material: 7075 aluminum • Weight: 35.59g

Zipp's Stem Top Cap and Bolt are designed to work specifically with Zipp stems. The eight-gram aluminum cap and nine-gram-bolt are the same as those used on bikes built for Zipp-sponsored professional teams. The bolt has a T25 Torx head for ease of adjustment and so you need only one tool for your Zipp cockpit.

- Forged steel cups with caged 5/32" ball bearings - TH-857 features a alloy top cover - TH Series: External Cup, traditional - S.H.I.S.: EC34/28.6|EC34/30 - Stack: 14.9mm/11mm - Color: Black - Weight: 126g

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 110 headsets. And, the 110 comes with an amazing 110-year, no-questions-asked warranty! • Technical Description: IS41/28.6/H9/x • 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: Top-quality, sealed stainless steel bearings • Material: 7075 aluminum • Weight: 41.81g

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/H8\EC49/40/K • Top Type: ZS - ZeroStack • Top Head Tube Inside Dia.: 44.00mm • 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.: 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: 97g

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

These baseplates are the foundation that keeps Chris King headsets turning with legendary smoothness. Manufactured from high-quality stainless steel or titanium, Chris King makes replacement baseplates for all standard sizes and a number of ingenious solutions for those that need something a little special to make their headset work. - Engineered and manufactured in Portland, Oregon USA - High-quality stainless steel and titanium baseplates available for all standard Chris King headset sizes - Titanium baseplates are available in 1-inch and 1 1/8-inch sizes only - Devolution baseplates are a stainless steel solution that allow King headsets to adapt to a wide variety of steerer tube sizes - King Stainless Steel baseplates are available in undersized and oversized versions for irregular steerer tube sizes

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

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

Get some of the most precisely machined spacers on the market. Available in lots of fun colors, Chris King's spacer kits include one each of their 25mm, 12mm, 6mm, and 3mm spacers.

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 7 is compatible with tapered 1-1/8 - 1-1/2-inch forks and frames using a 44mm headtube.

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.

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 8 is compatible with tapered 1-1/8 - 1-1/4-inch forks and frames using a 44mm headtube.

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 110 Series headsets. • Technical Description: ZS44/28.6/H15/K|ZS44/30/H4/x • Top Type: ZS - ZeroStack • Top Head Tube Inside Dia.: 44.00mm • Stem Clamp Dia.: 28.6mm • Top Stack Height: 15mm • Top Bearing Type: Top-quality, sealed stainless steel bearings • Material: 7075 • Weight: 95.62g

- 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

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 110 headsets. • Technical Description: IS52/30/H1 • Bottom Type: IS - Integrated • Bottom Head Tube Inside Dia.: 52.1mm • Crown Race Seat Dia.: 30.015mm • Crown Race Type: Aluminum, Dual-Seal • Bottom Stack Height: 1mm • Bottom Bearing Type: Top-quality, sealed stainless steel bearings • Weight: 45.25g

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 40-Series headsets. • Technical Description: IS42/28.6/H9/K|IS52/40/H1 • Top Type: IS - Integrated • Top Head Tube Inside Dia.: 42.00mm • Stem Clamp Dia.: 28.6mm • Top Stack Height: 9mm (Short), 15mm (Tall) • Top Bearing Type: Black Oxide, Sealed • Bottom Type: IS - Integrated • Bottom Head Tube Inside Dia.: 52.1mm • Crown Race Seat Dia.: 39.79mm • Crown Race Type: Steel, Face-Sealed • Bottom Stack Height: 1mm • Bottom Bearing Type: Black Oxide, Sealed • Material: 6061 aluminum • Weight: 84g

Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek's 40-Series headsets. • Technical Description: EC44/40/H12/K • Bottom Type: EC - External Cup • Bottom Head Tube Inside Dia.: 44.00mm • 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: 65g

- Aheadset preload adjusting bolt

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

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

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

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

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. This version uses a ZeroStack top cup and an external cup on the bottom.

- 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)

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 light carbon spacers for tuning stem height - Spacers are internally weight relieved to drop a few extra grams