Headsets

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.

- Upper Headset Assembly for 2010+ Madone - Bearing, Compression Ring, 15mm Top Cap - Go green and save green — Zero packaging means zero waste and zero extra cost

• Aluminum • Semi-sealed mechanism • 1 1/8 inch • S.H.I.S.: EC34/28.6, EC34/30

- Steel cup semi-integrated design - Threaded semi-integrated design - Fits many Sun cruisers and others - Caged bearing 5/32" x 22A - Cup Diameter: 44mm - Race Diameter: 30mm - Stack Height: 18.2mm

- Steel cups - Steel retainer bearings - Available in chrome or black - S.H.I.S.: EC34/28.6-26tpi|EC34/30 - Steerer Dia: 28.6mm - Cup Dia: 34mm - Race Dia: 30mm - Stack Ht: 40mm Size: 1-1/8"

• Steel • Retainer ball bearings, includes top cap and star nut • 1 1/8 inch • S.H.I.S.: EC34/28.6, EC34/30

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

• Steel • Retainer ball bearings, includes top cap and star nut • 1 inch • S.H.I.S.: EC30/25.4, EC30/26

- Steel cups - Steel retainer bearings - Available in chrome or black - S.H.I.S.: EC32/25.4-24tpi|EC32/27 - Steerer Dia: 25.4mm - Cup Dia: 32.5mm

The Sunday BMX headset is a quality headset at an affordable price: period. It offers one of the lower stack heights on the market and uses a Campagnolo standard spec for 1-1/8-inch integrated headsets. - 45º tapered bearings with 41.8mm outer diameter to fit 42mm BMX head tubes - Compatible with Odyssey GTX Gyro, GTX-R, GTX-S and Snafu Mobeus. - Comes with matching 3mm and 5mm spacers - Weight with/without spacers: 2.1/2.3 oz.

SRAM's Headset Spacer Set gives you what you need for setting handlebars to the correct height for a custom fit. These lightweight 1 1/8-inch headset spacers feature a carbon finish with stylish SRAM logos. You get two 5mm spacers and one 10mm and 15mm one.

RockShox's Headset Spacer Set is a perfect compliment to your RockShox fork. These lightweight 1 1/8-inch headset spacers feature a carbon finish with stylish RockShox logos. You get two 5mm spacers, one 10mm, and one 15mm.

- Traditional and integrated type replacement headset crown races

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

1-inch model: • Bearing Type: Cup and Cone • Color: Silver/Black • Crown Race: 26 • Defined Color: Silver • Lower Stack Height: 10.5 mm • S.H.I.S Lower: EC30 • S.H.I.S Upper: EC30 • S.H.I.S. Stem Clamp Diameter: 25.4-24tpi Quill • Upper Stack Height: 26 mm • Weight: 130 g 1-1/8-inch model: • Bearing Type: Cup and Cone • Color: Silver/Black • Crown Race: 30 • Defined Color: Silver • Lower Stack Height: 10.7 mm • S.H.I.S Lower: EC34 • S.H.I.S Upper: EC34 • S.H.I.S. Stem Clamp Diameter: 28.6-26tpi Quill • Upper Stack Height: 26 mm • Weight: 140 g

Ritchey's Logic Headset boasts machined aluminum cups for excellent longevity, light weight and super looks. A smaller upper angular cartridge bearing saves weight while a larger lower angular cartridge bearing boosts strength and durability.

The Ritchey Logic WCS threadless headset features angular-contact cartridge bearings with a lifetime guarantee. • Bearing Type: Cartridge • Color: Black • Crown Race: 30 • Defined Color: Black • Lower Stack Height: 12.9 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: 15.4 mm • Weight: 110 g

- Full complement stainless steel angular contact cartridge bearings packed with Ritchey high-webbing grease - Corrosion-resistant Ti-coated bearings - Top cap: 7.3 - Material: Alloy - Upper Fit (S.H.I.S.): ZS44/28.6 - Upper HT OD/ID: 50/44 - Bearing: Sealed cartridge, ti coated - Weight: 43g (7.3mm)

- Superlight CNC machined 6061 aluminum spacers for fine-tuning stem height - Includes one each 3, 5, 10mm spacers and two each 1mm spacers

Profile Design's lightweight and sleek looking headset spacers are just what you need to make sure your bike functions and looks great. Available in 2, 3, 5, 10, and 20mm thicknesses.

Converts quill style forks to use threadless stems.

• 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

• Tapered Campagnolo IS headset • 1-1/8" Upper, 1-1/2" Lower • Sealed bearings • Aluminum top cap and star nut • Upper bearing: 45º/45º / 41.8mm OD • Lower bearing: 45º/45º / 52mm OD • Crown race: 39.76mm ID • Stack height: 15.9mm • S.H.I.S.: IS42/28.6|IS52/40 • Steerer Diameter: 28.6mm • Cup Diameter: 39.76-52mm • Race Diameter: 40mm • Stack Height: 15.9mm • Bearing Angle: T:45/45 B:45/45

- 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

Lightweight aluminum alloy - Non-Keyed - Height: 20mm - 10 to a bag

Origin-8's Capster is a top cap, bolt and star nut for your 1 1/8-inch threadless headset. It comes in many colors so you can customize your ride.

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.

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.

• Tapered IS headset • 1-1/8" Upper, 1-1/2" Lower • Aluminum top cap and star nut • Upper bearing: 45º/45º / 41mm OD • Lower bearing: 36º/45º / 52mm OD • Crown race: 39.76mm ID • Stack height: 20mm • S.H.I.S.: IS41/28.6|IS52/40 • Steerer Diameter: 28.6mm • Cup Diameter: 39.76-52mm • Race Diameter: 40mm • Stack Height: 20mm • Bearing Angle: T:45/45 B:36/45

Origin-8's Low-Profile Ahead Cap is a sleek option for your a 1 1/8-inch fork/headset. It includes the bolt and star nut.