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Components & Drivetrain

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PREMIUM IS HEADSET - IS42 FOR SPECIALIZED - INTEGRATED STANDARD - UPPER

 

PREMIUM INTEGRATED     
UPPER IS42 SPECIALIZED

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PREMIUM HEADSET UPPER ASSEMBLY

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

   

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DESCRIPTION

PREMIUM IS HEADSET - IS42 FOR SPECIALIZED - INTEGRATED STANDARD - UPPER

Wolf Tooth headsets are machined here in our Minnesota shop with aircraft-grade 6061 aluminum. They are designed to be lightweight, strong, and durable. Premium Headsets with Enduro stainless steel bearings have a lifetime warranty.

Our headsets have three levels of industry-leading custom sealing to protect bearings from the elements and prolong the life of the headset. Available in a variety of colors. These IS headsets are for frames with molded-in internal bearing cups.

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.

2023 WOLF TOOTH IS42 SPEC

FEATURES

  • Ultralight Stem Cap with 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.
  • bearing top cap outer diameter 46.4 mm

SPECIFICATIONS

Weight: 43g (complete headset)
Material: 6061-T6 aluminum, Stainless steel bearing
Stem Cap Bolt Torque spec: 2-3 Nm with light grease on threads only
Made in the USA


The Story

Wolf Tooth was founded to design and manufacture precision cycling products that emphasize function, performance, and reliability to meet the needs of our fellow racers and riders.

We are a group of cyclists in Minneapolis, Minnesota that spend a lot of time talking about bike components. Like most detail-obsessed riders, we're always looking for new products that could make our bikes lighter, faster, more versatile, or more reliable. We pride ourselves on delivering premium products of the highest quality.