Wolf Tooth Components
Wolf Tooth Premium IS Headsets - Integrated Standard
SKU: IS41U-5MM-BLK
Free Shipping on orders over $50*
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Shipping
Shipping
*Free shipping applies to parts orders over $50 shipping to addresses within the contiguous U.S. (excludes HI, AK, APOs and US territories). Some exclusions apply.
International Orders
We can sell and ship some items internationally but certain brands or substances may be prohibited from shipping outside of U.S. or to certain territories.
We are unable to estimate local taxes and VAT and are not responsible for any of these charges or duties.
Package forwarders may be utilized at your discretion. We are not responsible for any damage that occurs after your item has been delivered to the shipping address. All shipments need to be inspected prior to being forwarded to secondary destinations.
Lead Times
We under promise and over deliver. Although many products will ship the same day or next day, our official policy is 2-4 business days of handling time including expedited orders (Next Day Air, etc.). If you need something in a rush please use a premium shipping service and contact us prior to placing your order for a more accurate ETA.
Shipping Restrictions
Certain items containing lithium batteries, compressed air or hazardous materials may only be shipped within the contiguous U.S. using ground delivery only.
Oversized items, including bikes, may not be available for expedited shipping. We will contact you should in the event that your selected shipping service is unavailable for your order.
Bike Builds
All bikes are built, checked and test ridden prior to boxing and shipping. This process averages 1-3 weeks depending on our backlog and the complexity of your build. Expedited builds are available for an additional fee, contact us for details.
Complete bikes are packed in our own specially designed bike boxes but do require some basic assembly. If you aren't confident in your mechanical abilities please have your local shop do the final assembly.
Only bikes/frames over $3000 are eligible for free shipping. There is a $150 charge on all bikes/frames under $3000.
Received a damaged item or bike?
We do our best to protect everything we ship but accidents do happen. Please keep all packaging and contact us within 24 hours of receiving your order so we can file a claim.
Details
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-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. 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 lower outer bearing diameter.
- Uppers and lowers sold separately.
- Enduro stainless steel sealed bearings included on both the upper 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 a compression plug (sold separately). (Never use a star nut on a carbon steerer tube).
Upper assembly features:
- Ultralight Stem Cap with Integrated Spacer plus an aluminum bolt and a star nut.
- 7, 15, and 25mm stack height top cover options (7mm cover = 8mm total stack, 15mm cover = 15mm total stack, 25mm cover = 25mm 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 damaging the crown race seals.
Related Products
Tech Specs
Weight: 7mm • 52g | 15mm • 59g | 25mm • 66g
Material: 6061 aluminum
Bevel Angle: 36 degrees
Stem Cap Bolt Torque Spec: 2-3 Nm with light grease on threads only
Made in the USA
Specs
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