Wolf Tooth Performance IS Headsets - Integrated Standard

Regular price
$44.95
Sale price
$44.95
Regular price

SKU: IS41U-5MM-BLK-B

Fitment
S.H.I.S. Designation
Color Black
Expected Ship Date: Wed Jul 08
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Description

Wolf Tooth headsets are machined in the USA with aircraft-grade 6061 aluminum. Our Performance Headsets are built with Enduro black oxide bearing and have a one-year warranty. Our headsets have three levels of superior custom sealing to protect bearings from the elements and prolong the life of the headset. They are designed to be lightweight, strong, and durable. Available in a variety of colors. These IS headsets are for frames with molded-in internal bearing cups.

Compatibility

  • Any frame that uses IS (Integrated Standard) headsets with 41mm upper and 52mm lower outer bearing diameter.
  • Uppers and lowers sold separately. 
  • Enduro black oxide 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).
Wolf Tooth Headset parts

Upper assembly features: 

  • Ultralight Stem Cap With Integrated Spacer plus an aluminum bolt and a star nut.
  • 7mm top cover = 8mm 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.

Recommendations

The Wolf Tooth crown race installation adapter will help avoid damage to crown race seals.

Related Products

Tech Specs

Weight: 7mm • 52g 
Material: 6061 aluminum
Bevel Angle: 36 x 45 degrees
Stem Cap Bolt Torque Spec: 2-3 Nm with light grease on threads only

Made in the USA

Patent and trademark information

Product Images Disclaimer
Product images are for reference only and may not reflect the exact specifications, color, or components of the item offered for sale. Please refer to the product description and specifications for the most accurate details. If you have questions before purchasing, contact us and we’ll be happy to confirm.

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ABOUT US

Who We Are

Born from a lifelong passion for all things bikes, AMG Cyclery is a small, family-run bike shop and community hub in Seaside, California. Founded by Alex and Alisa Gonzales, we believe cycling is for everyone — whether you’re chasing personal bests, heading out for a Sunday cruise, or just discovering two wheels for the first time. We build bikes that fit your style, service them with precision, and welcome every rider who walks through our doors. With a focus on community, craftsmanship, and riding culture, our shop has even been featured on The Radavist — a reflection of the unique bikes and vibrant energy you’ll find here.