{"product_id":"wolf-tooth-headsets-hdst1703-bicycle-headsets","title":"Wolf Tooth Premium ZS Headset - Zero Stack, 6061 Aluminum, Enduro Stainless Steel Bearings, 25mm Stack, Blue, Machined USA, Lightweight \u0026 Durable","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade your mountain biking setup with the Wolf Tooth Premium ZS Headset - Zero Stack Upper ZS44\/28.6 25mm Stack in Stunning Blue\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eEngineered for strength, durability, and exceptional performance, the Wolf Tooth Premium ZS Headset is a precision-machined component built to elevate your riding experience. Crafted in the USA from aircraft-grade 6061 aluminum, this lightweight yet robust headset ensures optimal steering precision and long-lasting reliability for demanding trail conditions.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eMaterials \u0026amp; Construction\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003e- Made from high-quality aircraft-grade 6061 aluminum, offering an ideal balance of weight and durability\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003e- Precision-machined in Wolf Tooth's Minnesota workshop for superior craftsmanship\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003e- Features Enduro stainless steel sealed bearings with a lifetime warranty, ensuring smooth operation over years of riding\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003ePerformance \u0026amp; Engineering\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003e- Designed for frames with internal bearing cups pressed into the head tube (Zero Stack, ZS44\/28.6)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003e- Equipped with industry-leading sealing systems: a custom-molded upper lip seal, triple sealing layers, and a dual-lip seal on the crown race to protect bearings from dirt, water, and debris-extending headset lifespan\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003e- O-ring seal prevents water intrusion around the steerer tube, maintaining optimal performance in wet conditions\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003eComponents \u0026amp; Technology\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e- Includes high-quality stainless steel sealed bearings for both upper and lower assemblies\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Comes with a lightweight stem cap, integrated spacer, aluminum bolt, and star nut (compatible with steel or aluminum steerers)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- 6mm, 15mm, and 25mm stack height options provide customizable fit and headset adjustment without compromising strength\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003e- Custom-molded upper and lower seal designs ensure maximum protection even in harsh trail conditions\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003eStyle \u0026amp; Use Case\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003e- Sleek, anodized blue finish adds a vibrant, stylish touch to your bike's cockpit\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-18\"\u003e\u003cp\u003e- Perfect for mountain biking, enduro, and trail riding where durability, precision, and weather resistance are critical\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-19\"\u003e\u003cp\u003e- Compatible with frames featuring 44mm ZS upper and 56mm lower head tube inner diameters-available separately for different specifications\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-20\"\u003e\u003cp\u003eInnovative Features \u0026amp; Differentiators\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-21\"\u003e\u003cp\u003e- CNC-machined from aircraft-grade aluminum for unmatched quality and lightweight performance\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-22\"\u003e\u003cp\u003e- Industry-leading sealing technology offers superior bearing protection, reducing maintenance and increasing headset longevity\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-23\"\u003e\u003cp\u003e- Lifetime warranty on bearings demonstrates trusted durability and support\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-24\"\u003e\u003cp\u003eSpecifications \u0026amp; Compatibility\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-25\"\u003e\u003cp\u003e- Weight: Approximately 55-58 grams\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-26\"\u003e\u003cp\u003e- Material: 6061 aluminum\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-27\"\u003e\u003cp\u003e- Bevel Angle: 36 x 45\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-28\"\u003e\u003cp\u003e- Suitable for forks with steel or aluminum steerers (star nut included); for carbon steerers, use a compatible compression plug (sold separately)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-29\"\u003e\u003cp\u003e- Made in the USA with meticulous attention to detail\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-30\"\u003e\u003cp\u003eEnhance your bike's steering precision and style with the Wolf Tooth Premium ZS Headset - Zero Stack Upper ZS44\/28.6 25mm Stack in Blue. Built for riders who demand durability, performance, and a custom fit, this headset is a crucial upgrade for serious mountain bikers seeking trusted reliability on every trail.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003ePremium craftsmanship: Machined in Minnesota from aircraft-grade 6061 aluminum for superior strength, lightweight performance, and durability. \u003c\/li\u003e\n\u003cli\u003eAdvanced sealing technology: Features three levels of industry-leading seals, including custom-molded lip seals and O-ring protection, ensuring bearings stay dry and dirt-free for longer lifespan. \u003c\/li\u003e\n\u003cli\u003eEnhanced performance \u0026amp; longevity: Equipped with high-quality Enduro stainless steel sealed bearings backed by a lifetime warranty, delivering reliable, smooth steering in tough riding conditions. \u003c\/li\u003e\n\u003cli\u003eVersatile compatibility \u0026amp; customization: Designed for ZS (Zero Stack) head tube frames with 44mm upper and 56mm lower inner diameters; includes multiple stack height options (6mm, 15mm, 25mm) for precise fit and ride height adjustment. \u003c\/li\u003e\n\u003cli\u003eStylish and practical: Available in vibrant colors, featuring an ultralight stem cap with integrated spacer, star nut for steel\/aluminum steerer tubes, and tailored components for easy installation and maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Wolf Tooth","offers":[{"title":"Default Title","offer_id":42875966029891,"sku":"HDST1703","price":97.09,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/WT-ZS44U-25MM-BLU-01_25e846c6-b917-47ca-848f-815884ac820b.jpg?v=1773484305","url":"https:\/\/365cycles.com\/products\/wolf-tooth-headsets-hdst1703-bicycle-headsets","provider":"365 Cycles","version":"1.0","type":"link"}