Wolf Tooth Precision Headsets are machined in the USA out of aircraft grade aluminum with superior sealing for protection against the elements. These IS headsets are for frames with molded-in internal bearing cups. Enduro stainless steel sealed bearings. Signature 5 mm integrated spacer plus stem cap with an aluminum bolt and a star nut. O-ring seal prevents water intrusion around the steerer tube. Custom molded upper lip seal provides additional protection for upper bearing. Item Specifications: Bearing Type, Cartridge, Color, Black, Upper Stack Height, 7mm, S.H.I.S Upper, IS41, S.H.I.S. Stem Clamp Diameter, 28.6 Threadless,

Wolf Tooth IS41 28.6mm Upper Headset with Stainless Steel Bearings & Ultra-Light Stem Cap

Reference Number: 7S05O4

Upgrade Your Mountain Biking Experience with the Wolf Tooth IS41 28.6mm Upper Headset - Black

Engineered for durability, precision, and performance, the Wolf Tooth IS41 28.6mm Upper Headset is a premium component designed for serious riders seeking reliability in challenging conditions. Crafted from aircraft-grade 6061 aluminum in our Minnesota workshop, this headset offers an optimal balance of lightweight strength and rugged endurance, ensuring your bike responds perfectly on every trail.

Materials & Construction

Constructed from CNC-machined 6061 aluminum, known for its exceptional strength-to-weight ratio, the Wolf Tooth headset embodies precision engineering. The stainless steel bearings-integrated for corrosion resistance-are built to withstand wet and muddy terrain, offering longevity and consistent performance. The durable black anodized crown race and custom-molded upper lip seal provide superior protection against dirt, water, and debris, prolonging bearing life.

Performance & Technology

Designed with three layers of industry-leading sealing, this headset guarantees maximum bearing protection for extended, trouble-free riding. The O-ring seal around the steerer tube prevents water intrusion, while the stainless steel bearings and dual-lip crown race seal deliver unparalleled corrosion resistance and smooth steering. Available in three stack height options-7mm, 15mm, and 25mm-allowing precise customization to match your bike's geometry.

Components & Features

- Ultralight stem cap with integrated spacer, aluminum bolt, and star nut for streamlined setup and easy installation.

- Compatibility with frames featuring IS (Integrated Standard) headsets with a 41mm upper and 52mm lower outer bearing diameter.

- Upper assembly includes a standard star nut (ideal for steel or aluminum steerers) or a compression plug (sold separately) for carbon steerers, ensuring versatility.

- Precision-machined from aircraft-grade aluminum, offering a lifetime warranty on bearings for peace of mind.

- Optional tension-adjustable top cover with 7mm, 15mm, or 25mm stack height to fine-tune your cockpit setup.

Style & Use Case

With its sleek black finish and minimalist design, the Wolf Tooth IS41 headset complements any mountain bike build. Whether you're conquering rocky descents, muddy trails, or riding in wet weather, this headset is engineered to perform under the toughest conditions. Its lightweight construction ensures minimal impact on overall bike weight, making it ideal for competitive racing or everyday trail riding.

Innovative & Differentiating Features

- Custom-molded seals for superior protection against water and mud ingress.

- Stainless steel bearings for corrosion resistance and longevity.

- Compatible with a wide range of frames equipped with IS41 head tube standards.

- Built in the USA with a focus on quality, precision, and durability.

Optimize your bike's steering performance with the Wolf Tooth IS41 28.6mm Upper Headset - the perfect choice for riders demanding high-quality components that stand up to the elements. Upgrade today for smoother, more reliable handling and long-lasting performance.

Key Specifications:

- Stack Height: 7mm, 15mm, or 25mm options

- Material: CNC-machined 6061 aluminum

- Bearings: Stainless steel sealed bearings

- Compatibility: Frames with IS41/28.6mm head tube standards

- Weight: 52g (7mm stack) / 59g (15mm) / 66g (25mm)

- Made in the USA

Enhance your mountain bike's durability and performance-choose Wolf Tooth's premium headsets for confident rides in any environment.

  • Lightweight and durable, the Wolf Tooth IS41 28.6 Upper Headset is machined from aircraft-grade 6061 aluminum, ensuring exceptional strength while maintaining a low weight profile for responsive riding.
  • Designed with advanced sealing technology, including a custom-molded lip seal and O-ring to prevent water intrusion and protect bearings in wet or muddy conditions, extending headset lifespan and reducing maintenance.
  • Features high-quality Enduro stainless steel sealed bearings with a lifetime warranty, offering smooth, reliable performance and corrosion resistance in demanding off-road environments.
  • The ultralight stem cap includes an integrated spacer, aluminum bolt, and customizable stack height options (7mm, 15mm, 25mm), providing versatile fitment for various frame geometries and rider preferences.
  • Compatible with frames utilizing IS (Integrated Standard) headsets with 41mm upper bearing diameter, and available in stylish black color, this headset is ideal for mountain biking, gravel, and trail riding where durability and performance matter.
Item Specifications
Upper Stack Height7
S.H.I.S UpperIS41
S.H.I.S. Stem Clamp Diameter28.6
ColorBlack
Bearing TypeCartridge
Bearing TypeStainless Steel
Upper/LowerUpper
S.H.I.S. Stem Clamp DiameterIS41/28.6
ColorBlack
Model NamePremium Upper
Stack7mm

Why 365 Cycles?

365 Cycles is an Authorized Wolf Tooth Dealer, and we offer the Full Wolf Tooth Warranty!

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365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.

At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.

We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.





Shipping & Handling

Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.

Please allow 1-2 business days for your order tracking to update.

  • Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
  • Friday afternoon -Sunday orders ship the following Monday
  • Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.

Combined Shipping Discounts

To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.

  1. Be sure you are using the US site: https://www.ebay.com
  2. Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
  3. Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
  4. Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
  5. You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.

Returns

365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.

Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.

Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.

If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!

Exchanges

If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.



HD1742 .

Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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