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Headsets
$17.99
- 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
$31.99
High-quality replacement headset bearings are smooth like butter.
- Sealed cartridge bearing for long life
- Durable steel bearing housing
$29.99
• Includes carbon top cap, as well as 2x3mm, 3x5mm and 3x10mm spacers to dial in your fit
$63.99
Service and replacement parts specifically for Trek Knock Block technology.
Genuine replacement parts
Get your bike back on the trail with the headset parts you need.
- Trek proprietary headset components compatible with Trek Knock Block models
- 72-degree headset fits 2021 Slash 29
- Includes crown race, bearings, top cover, frame chip & fastener
- Frame chip has display tabs to connect Bosch Kiox Mount sold separately
- Must be paired with Knock Block stem and Knock Block spacers
- Knock Block headset spacers not included
$26.99
• Aluminum
• Semi-sealed mechanism
• 1 1/8 inch
• S.H.I.S.: EC34/28.6, EC34/30
$19.19
- 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
$14.99
- 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"
$12.99
• Steel
• Retainer ball bearings, includes top cap and star nut
• 1 1/8 inch
• S.H.I.S.: EC34/28.6, EC34/30
$9.99 - $20.99
- Steel cups
- Steel retainer bearings
- Available in chrome or black
- Steerer Dia: 25.4mm
- Cup Dia: 30mm
$12.99
• Steel
• Retainer ball bearings, includes top cap and star nut
• 1 inch
• S.H.I.S.: EC30/25.4, EC30/26
$9.99 - $24.99
- 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
$19.99
The Sunday BMX integrated headset is designed to be a quality headset at an affordable price.
- Laser-etched Sunday logo
- Color-matching spacers included
- Gyro compatible
- High quality sealed bearings and precision tapered wedge help to keep the headset tight
$21.99
The Sunday BMX integrated headset is designed to be a quality headset at an affordable price.
- Laser-etched Sunday logo
- Color-matching spacers included
- Gyro compatible
- High quality sealed bearings and precision tapered wedge help to keep the headset tight
$48.99
• 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
$22.49
- 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
$14.99
Lightweight aluminum alloy
- Non-Keyed
- Height: 20mm
- 10 to a bag
$20.99
- 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
$39.99 - $48.99
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.
$69.99
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
$39.49 - $49.99
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
$71.99
Origin8's Twistr Semi-Integrated & External 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
$59.99 - $69.99
Origin8's Twistr Semi-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, and the CNC-machined AL7075 crown race protects the lower bearings and fork.
- AL6061 top cap
- Forged stainless steel bolt
- Includes star nut
$26.99
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).
$29.99
New dust cap design, with Monogram laser etched logo, for a cleaner look to accommodate a taller riding set up with less spacers. Same quality as Odyssey's Pro Headset 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.
- 15mm dust cap. With 3mm, and 2mm spacers
- Laser etched Odyssey bearings.
SPECS
- Campagnolo standard spec.
- 1 1/8-inch integrated headset.
- 45º tapered bearings
- 41.8mm outer diameter (fits 42mm BMX head tubes).
$26.00
-Aircap OD2 expander system steerer plug (2012-2016)
$19.99
Replacement headset bearings from FSA.
- Compatible with most Trek MTB integrated headset systems
- Sealed bearing for long life
- Compatible with Knock Block Headsets
$13.00
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
$16.99
- 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
$29.99
- Gyro compatible, 45/45 degree angular contact cartridge bearings, alloy crown race
- Impact: 45x45 degree Campagnolo Integrated
- S.H.I.S.: IS42/28.6|IS42/30
- Stack: 8mm/1mm
- Color: Black, Orange, Red
- Weight: 68g
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