Wolf Tooth Premium Headset (IS / Upper 42mm) Specialized

Wolf Tooth headsets are machined here in our Minnesota shop with aircraft-grade 6061-T6 aluminum. They are designed to be lightweight, strong, and durable.

Our headsets have three levels of industry-leading custom sealing to protect bearings from the elements and prolong the life of the headset. This has a stack height of 3mm and is available in a variety of colors to match other Wolf Tooth anodized color options. 

These IS headsets are made exclusively for Specialized frames with molded-in internal bearing cups. Like all Wolf Tooth Premium Headsets with Enduro stainless steel bearings, the Premium IS Headset for Specialized has a lifetime warranty.  

Compatibility

• Any Specialized bike that uses an IS (Integrated Standard) headset with 42mm upper bearing diameter.
• Uppers and lowers sold separately. 
• Enduro stainless 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).
• Some bikes, like the Stumpjumper EVO, have an adjustable headset that resembles a ZS headset where an upper cup is pressed into the frame. Our bearing will fit into that cup and our top cap will fit neatly on top. 
• Not compatible with 2020 or newer Specialized Road/ Gravel Bikes.

Known Compatible Specialized Bike Models

Aluminum Mountain Bikes (except pre-2017 Chisel HT aluminum)
Camber Carbon  |  2014
Chisel Alloy HT (Smartweld HT)  |  2017-2021
Enduro 29 Carbon  |  2014
Enduro Carbon  |  2017, 2020
Epic Carbon  |  2014
Epic FSR  |  2021
Epic FSR Carbon  |  2018
Epic HT  |  2017, 2020
Fatboy Carbon  |  2015
Fuse Carbon  |  2017
Stumpjumper  |  2021
Stumpjumper Carbon  |  2019
Stumpjumper EVO  |  2021
Stumpjumper FSR Carbon  |  2016
Turbo Levo

For the guide to determine which headset you need, click here.

Tech Specs