{"product_id":"wolf-tooth-headset-upper-hdup0025","title":"Wolf Tooth ZS44\/28.6 Performance Headset - Aluminum, Black Oxide Bearings","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade Your Cycling Experience with the Wolf Tooth Performance ZS Headsets - Zero Stack Upper ZS44\/28.6 6mm Stack Black\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eDesigned 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.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eMaterials \u0026amp; Durability\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003eBuilt 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.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003ePerformance \u0026amp; Engineering\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eEngineered 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.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003eComponents \u0026amp; Technology\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003eStyle \u0026amp; Use Case\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003eAvailable 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.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003eInnovative \u0026amp; Differentiating Features\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e- Custom-molded seals for enhanced bearing protection against the elements\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Industry-leading water-resistant design with O-ring and lip seals\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- Machined in-house from aircraft-grade aluminum for optimal quality and precision\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003e- Compatibility with steel or aluminum steerers (requires star nut; carbon steerers need a compression plug sold separately)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003e- One-year warranty on performance bearings, emphasizing durability and customer satisfaction\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003eEnhance 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.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-18\"\u003e\u003cp\u003eTechnical Specs:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-19\"\u003e\u003cp\u003e- Weight: 55-58g\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-20\"\u003e\u003cp\u003e- Material: 6061 Aluminum\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-21\"\u003e\u003cp\u003e- Upper Stack Height: 6mm\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-22\"\u003e\u003cp\u003e- S.H.I.S. Upper: ZS44\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-23\"\u003e\u003cp\u003e- S.H.I.S. Stem Clamp Diameter: 28.6mm\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-24\"\u003e\u003cp\u003e- Bearings: Black Oxide Steel sealed cartridge bearings\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-25\"\u003e\u003cp\u003e- Compatibility: Frames with pressed-in bearing cups (Inner diameter: 44mm upper, 56mm lower)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-26\"\u003e\u003cp\u003e- Color: Black\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-27\"\u003e\u003cp\u003e- Made in the USA\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-28\"\u003e\u003cp\u003eUpgrade your bike today with the Wolf Tooth Performance ZS Headset - engineered for riders who demand the best.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eHigh-performance CNC-machined from aircraft-grade 6061 aluminum for exceptional strength and lightweight durability. \u003c\/li\u003e\n\u003cli\u003eFeatures Enduro black oxide sealed bearings with corrosion-resistant chromium steel for long-lasting performance in harsh riding conditions. \u003c\/li\u003e\n\u003cli\u003eDesigned 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. \u003c\/li\u003e\n\u003cli\u003eAdvanced 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. \u003c\/li\u003e\n\u003cli\u003eCompatible 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.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Wolf Tooth","offers":[{"title":"Default Title","offer_id":42356353204291,"sku":"HDUP0025","price":54.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/WT-ZS44U-5MM-BLK-01_75c806c0-29ad-43b0-beed-ca9817cb1378.jpg?v=1773538255","url":"https:\/\/tecopecosafe.com\/products\/wolf-tooth-headset-upper-hdup0025","provider":"365 Cycles","version":"1.0","type":"link"}