Wolf Tooth Premium 3mm Upper Headset for Specialized Bikes - Lightweight & Durable MTB Headset for Smooth Steering on Trail Rides

Wolf Tooth headsets are machined 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 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.CompatibilityAny 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).Known Compatible Specialized Bike ModelsAluminum Mountain Bikes (all except Chisel HT aluminum)Camber Carbon 2014Chisel Alloy HT (Smartweld HT) 2017-2021Enduro 29 Carbon 2014Enduro Carbon 2017, 2020Epic Carbon 2014Epic FSR 2021Epic FSR Carbon 2018Epic HT 2017, 2020Fatboy Carbon 2015Fuse Carbon 2017Stumpjumper 2021Stumpjumper Carbon 2019Stumpjumper EVO 2021Stumpjumper FSR Carbon 2016Upper assembly featuresUltralight Stem Cap with 5mm Integrated Spacer plus an aluminum bolt and a star nut.One 3mm stack height top cover option.O-ring seal prevents water intrusion around steerer tube.Custom-molded upper lip seal provides additional protection for upper bearing.