Wolf Tooth headsets are machined here in our Minnesota shop with aircraft-grade 6061 aluminum. They are designed to be lightweight, strong, and durable. Our headsets have three levels of industry-leadingcustom sealing to protect bearingsfrom the elements and prolong the life of theheadset. Available in a variety of colors.TheseIS headsets are for frameswithmolded-in internal bearing cups.Premium Headsets with Enduro stainless steel bearings have a lifetime warranty.

Compatibility

• Any frame that uses IS (Integrated Standard) headsets with 41mm upper and 52mm lowerouter bearing diameter.
• Uppers and lowers sold separately.
• Enduro stainless steelsealed bearings included on both theupper 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 acompression plug(sold separately). (Never use a star nut on a carbon steerer tube).