Wolf Tooth Premium Integrated Standard Headset

Compatibility
• Any frame that uses IS (Integrated Standard) headsets with 41mm upper and 52mm lower outer bearing diameter.
• Uppers and lowers sold separately.
• Enduro stainless steel sealed bearings included on both the upper and lower.
• IS42 is not compatible with Specialized bikes or bikes using the Campagnolo Hiddenset standard
• 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.
• 7, 15, and 25mm stack height top cover options (7mm cover = 8mm total stack, 15mm cover = 15mm total stack, 25mm cover = 25mm 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
Lower assembly features:
• IS lower headset consists of a bearing and crown race only. The crown race is black anodized and not visible when installed.
• Custom over-molded dual-lip seal on the crown race to protect lower bearing in the toughest conditions.
• Headset components precision machined in-house at Wolf Tooth from aircraft grade aluminum to ensure the highest level of quality.
• Service and additional parts available.
• Material: 6061 aluminum
Stem Cap Bolt Torque Spec: 2-3 Nm with light grease on threads only
• Made in the USA