{"product_id":"hdst1804","title":"FSA Orbit 1.5E ZS1 Internal Headset | CNC Machined Alloy Components, Tapered 1-1 - 8\" \u0026 1.5\" Compatibility, Lightweight \u0026 Durable Bicycle Steering Accessory","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eEnhance your bike's performance and steering precision with the FSA Orbit 1.5E ZS1 Internal Headset, H2051A. Crafted for riders who demand durability, smooth handling, and high-quality engineering, this internal headset is the perfect upgrade for tapered head tubes on mountain, road, or gravel bikes.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eMaterials \u0026amp; Construction:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eBuilt entirely from premium durable alloy components, the FSA Orbit 1.5E ZS1 Headset ensures long-lasting performance and corrosion resistance. The forged alloy upper cup and CNC machined alloy lower cup deliver a precise fit and exceptional strength, making it ideal for both aggressive riding and everyday cycling.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003ePerformance \u0026amp; Engineering:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003eFeaturing FSA's innovative ZS1 internal design, this headset provides superior bearing alignment and reduced friction for exceptional handling and responsiveness. The 1.5-inch steerer compatibility ensures compatibility with a wide range of modern tapered head tubes, supporting steering accuracy and stability in challenging terrains.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eComponents \u0026amp; Technology:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003eEquipped with robust black seals (ACB) on both the upper and lower cups, the headset offers excellent sealing against dirt, water, and debris, minimizing maintenance needs. The stack height of 5.3mm upper and 12.8mm lower (total 19.8mm) offers precise fitment, while the lightweight design at just 129.6 grams ensures minimal impact on bike weight and handling.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003eStyle \u0026amp; Use Case:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003eDesigned for riders seeking durability and performance in demanding conditions, the FSA Orbit 1.5E ZS1 is perfect for mountain bikes, gravel cyclists, or any bike with a tapered head tube. Its sleek black finish complements a variety of frame styles, making it an ideal choice for both professional and enthusiast cyclists.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003eInnovative \u0026amp; Unique Features:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003e- ZS1 Internal Design for optimized bearing life and smooth steering\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e- Compatibility with 1-1\/8\" \u0026amp; 1.5\" tapered steerer tubes\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Precision CNC machining and forging techniques for enhanced durability\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- Sealed black ACB seals for excellent environmental protection\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003eUpgrade your bike's steering system with the FSA Orbit 1.5E ZS1 Internal Headset-where durability meets precision engineering for unmatched ride quality. Perfect for demanding terrains and high-performance biking applications.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003ePrecision-engineered FSA Orbit 1.5E ZS1 Internal Headset features a durable forged alloy upper cover and CNC-machined alloy lower cup, ensuring long-lasting performance and resistance to wear. \u003c\/li\u003e\n\u003cli\u003eDesigned for tapered 50mm \/ 62mm OD head tubes with 1-1\/8\" and 1.5\" steerer compatibility, this headset offers a seamless fit for a variety of high-performance mountain and road bikes.\u003c\/li\u003e\n\u003cli\u003eUtilizes the innovative ZS1 internal design with ACB (Black Seal) technology, providing smooth, consistent steering and superior sealing against dirt and moisture for optimal longevity.\u003c\/li\u003e\n\u003cli\u003eLightweight at just 129.6 grams, the headset's high-strength alloy components deliver excellent stiffness and precise steering control without adding unnecessary weight to your bike.\u003c\/li\u003e\n\u003cli\u003eIdeal for aggressive riding and demanding terrains, the FSA Orbit 1.5E ZS1 Headset combines advanced engineering, versatile compatibility, and sleek styling for enhanced bike performance and unbeatable reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Full Speed Ahead","offers":[{"title":"Default Title","offer_id":43065909248067,"sku":"HDST1804","price":59.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/HD1329.jpg?v=1774417815","url":"https:\/\/365cycles.com\/products\/hdst1804","provider":"365 Cycles","version":"1.0","type":"link"}