{"product_id":"617395140688","title":"Trek Knock Block Headset, 1-1\/8, FSA, w\/ Bearings, Spacers, Crown Race \u0026 Chip","description":"\u003ch1\u003eTrek Knock Block Headset – 1-1\/8\", FSA, with Bearings, Spacers, Crown Race \u0026amp; Chip\u003c\/h1\u003e\n  \u003cp\u003e\n    The Trek Knock Block Headset is a complete OEM replacement headset system designed for Trek frames \n    featuring the Knock Block steering stop. Built in partnership with FSA, this 1-1\/8\" headset includes \n    precision bearings, compression spacers, crown race, and the unique Knock Block frame chip with \n    locating pin holes and bolt. With durable AL7075 alloy construction and an anodized black finish, \n    this headset ensures smooth steering performance while protecting your frame from handlebar and fork crown impacts.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eWhy you’ll like it\u003c\/h2\u003e\n  \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete system\u003c\/strong\u003e – includes top cap, bearings, compression spacer, crown race, and Knock Block chip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e58° AL7075 alloy top cap\u003c\/strong\u003e – strong, lightweight, and anodized black for durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e42E precision bearings\u003c\/strong\u003e – smooth, long-lasting performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Block frame chip\u003c\/strong\u003e – protects your frame by preventing handlebar over-rotation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFSA co-branded\u003c\/strong\u003e – trusted quality from a leading headset manufacturer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n  \u003ch2\u003eWhat’s in the box\u003c\/h2\u003e\n  \u003cul\u003e\n\u003cli\u003e1 × AL7075 58° top cap (anodized black, FSA logo)\u003c\/li\u003e\n\u003cli\u003e1 × Set of 42E sealed cartridge bearings\u003c\/li\u003e\n\u003cli\u003e1 × Compression spacer\u003c\/li\u003e\n\u003cli\u003e1 × Crown race\u003c\/li\u003e\n\u003cli\u003e1 × Knock Block frame chip with locating pin holes and bolt\u003c\/li\u003e\n\u003c\/ul\u003e\n\n  \u003ch2\u003eTech specs\u003c\/h2\u003e\n  \u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth colspan=\"1\" rowspan=\"1\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd colspan=\"1\" rowspan=\"1\"\u003eTrek \/ FSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"1\" rowspan=\"1\"\u003eModel\u003c\/th\u003e\n\u003ctd colspan=\"1\" rowspan=\"1\"\u003eKnock Block Headset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"1\" rowspan=\"1\"\u003eSize\u003c\/th\u003e\n\u003ctd colspan=\"1\" rowspan=\"1\"\u003e1-1\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"1\" rowspan=\"1\"\u003eTop Cap\u003c\/th\u003e\n\u003ctd colspan=\"1\" rowspan=\"1\"\u003e58° AL7075, anodized black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"1\" rowspan=\"1\"\u003eBearings\u003c\/th\u003e\n\u003ctd colspan=\"1\" rowspan=\"1\"\u003e42E sealed cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"1\" rowspan=\"1\"\u003eIncluded Hardware\u003c\/th\u003e\n\u003ctd colspan=\"1\" rowspan=\"1\"\u003eCompression spacer, crown race, Knock Block chip, locating pin, bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"1\" rowspan=\"1\"\u003eFinish\u003c\/th\u003e\n\u003ctd colspan=\"1\" rowspan=\"1\"\u003eBlack anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"1\" rowspan=\"1\"\u003eApplication\u003c\/th\u003e\n\u003ctd colspan=\"1\" rowspan=\"1\"\u003eTrek frames with Knock Block steering stop system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n  \u003ch2\u003eFit notes\u003c\/h2\u003e\n  \u003cul\u003e\n\u003cli\u003eDesigned for Trek bikes equipped with the Knock Block system.\u003c\/li\u003e\n\u003cli\u003eIncludes all hardware for a complete installation.\u003c\/li\u003e\n\u003cli\u003eProtects frame from damage by preventing over-rotation of handlebars and fork crown contact.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FSA","offers":[{"title":"Default","offer_id":47747904831700,"sku":"617395140688","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/outlet.wheelandsprocket.com\/products\/617395140688","provider":"Wheel \u0026 Sprocket - Outlet","version":"1.0","type":"link"}