Compatibility
- Any frame that uses IS (Integrated Standard) headsets with 41mm upper and 52mm lower outer bearing diameter.
- Uppers and lowers sold separately.
- Enduro black oxide steel sealed bearings 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). (Never use a star nut on a carbon steerer tube).
Upper assembly features:
- Ultralight Stem Cap With Integrated Spacer plus an aluminum bolt and a star nut.
- 7mm top cover = 8mm total stack.
- O-ring seal prevents water intrusion around steerer tube.
- Custom-molded upper lip seal provides additional protection for upper bearing.
- bearing top cap outer diameter 45.8 mm
Specifications:
- Weight: 7mm • 52g
- Material: 6061 aluminum
- Stem Cap Bolt Torque Spec: 2-3 Nm with light grease on threads only
- Made in the USA