A Real Brick And Mortar Retail Bicycle Shop with people you can talk to!
Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST)
Video will open in a new window
Wolf Tooth ZS44/28.6 Zero Stack Headset - Aircraft Aluminum, Black Oxide Bearings
Reference Number: 3SA3OF
Upgrade Your Cycling Experience with the Wolf Tooth Performance ZS Headsets - Zero Stack Upper ZS44/28.6 6mm Stack Black
Designed for serious cyclists and mountain bike enthusiasts, the Wolf Tooth Performance ZS Headset offers precision engineering, durability, and lightweight performance. Crafted in the USA from aircraft-grade 6061 aluminum, this headset seamlessly combines robust construction with sleek style, ensuring optimal performance on the trail and the road.
Materials & Durability
Built with aircraft-grade 6061 aluminum, the Wolf Tooth ZS headsets are machined in our Minnesota shop to the highest standards, providing a lightweight yet incredibly strong and durable component. The Black Oxide steel sealed bearings feature high load capacity, corrosion resistance, and long-lasting performance, protected further by industry-leading sealing technology, including custom-molded seals and O-rings that shield against water intrusion and dirt.
Performance & Engineering
Engineered for precision and reliability, these headsets include Enduro black oxide bearings designed for extreme conditions, ensuring smooth steering and long-lasting reliability. The headset's three layers of custom sealing protect the bearings from dust, mud, and moisture, significantly extending the lifespan of your component. The ultralight stem cap with integrated spacer, aluminum bolt, and star nut minimizes weight without compromising strength.
Components & Technology
The ZS44/28.6 upper headset features a 6mm stack height with a 36 x 45-degree bevel angle for optimal compatibility and stem fit. The custom-molded upper lip seal enhances upper bearing protection, while the crown race's dual-lip seal defends the lower bearing in tough conditions. Designed for frames with internal pressed-in bearing cups, this headset ensures a secure, snug fit for ZS (Zero Stack) head tube interfaces.
Style & Use Case
Available in sleek black finish with modern aerospace aesthetics, the Wolf Tooth ZS Headset complements a wide range of mountain and hybrid bikes. Ideal for trail riding, enduro, and all-mountain biking, this headset provides dependable performance when it matters most. Its versatile design makes it suitable for bikes with internal bearing cups measuring 44mm upper and 56mm lower inner diameters, whether you're upgrading or building from scratch.
Innovative & Differentiating Features
- Custom-molded seals for enhanced bearing protection against the elements
- Industry-leading water-resistant design with O-ring and lip seals
- Machined in-house from aircraft-grade aluminum for optimal quality and precision
- Compatibility with steel or aluminum steerers (requires star nut; carbon steerers need a compression plug sold separately)
- One-year warranty on performance bearings, emphasizing durability and customer satisfaction
Enhance Your Bike's Steering Precision and Reliability with the Wolf Tooth Performance ZS Headset - built to withstand the demands of aggressive trail riding while maintaining a sleek, lightweight profile. Whether upgrading your current setup or assembling a new bike, trust Wolf Tooth's renowned quality and engineering to deliver superior performance and longevity.
Technical Specs:
- Weight: 55-58g
- Material: 6061 Aluminum
- Upper Stack Height: 6mm
- S.H.I.S. Upper: ZS44
- S.H.I.S. Stem Clamp Diameter: 28.6mm
- Bearings: Black Oxide Steel sealed cartridge bearings
- Compatibility: Frames with pressed-in bearing cups (Inner diameter: 44mm upper, 56mm lower)
- Color: Black
- Made in the USA
Upgrade your bike today with the Wolf Tooth Performance ZS Headset - engineered for riders who demand the best.
- High-performance CNC-machined from aircraft-grade 6061 aluminum for exceptional strength and lightweight durability.
- Features Enduro black oxide sealed bearings with corrosion-resistant chromium steel for long-lasting performance in harsh riding conditions.
- Designed with a 6mm stack height, this Zero Stack ZS44/28.6 headset ensures precise steering and smooth responsiveness for aggressive trail riding and enduro racing.
- Advanced sealing system includes a custom-molded upper lip seal and dual-lip crown race seal, providing superior water, dirt, and debris protection to extend the lifespan of your headset components.
- Compatible with internal bearing cups on ZS (Zero Stack) frame designs, with an ultralight integrated stem cap, star nut, and optional compression plug for carbon steerers-ideal for mountain bikers seeking reliability and style.
| Item Specifications | |
|---|---|
| Upper Stack Height | 6 |
| S.H.I.S Upper | ZS44 |
| S.H.I.S. Stem Clamp Diameter | 28.6 |
| Color | Black |
| Bearing Type | Cartridge |
| Bearing Type | Black Oxide Steel |
| Upper/Lower | Upper |
| S.H.I.S. Stem Clamp Diameter | ZS44/28.6 |
| Color | Black |
| Model Name | Performance Upper |
| Stack | 6mm |
Why 365 Cycles?
365 Cycles is an Authorized Wolf Tooth Dealer, and we offer the Full Wolf Tooth Warranty!
Fast Shipping!
Professional Customer Service- available 7 days a week
Check out our 200,000+ amazing reviews!
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.- Be sure you are using the US site: https://www.ebay.com
- Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
- Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
- Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
- 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.
