{"product_id":"rockshox-fork-csu-linear-xl-zeb-ultimate-b1-replacement-crown-steerer-2027","title":"RockShox Fork CSU Linear XL Zeb Ultimate B1+ Replacement Crown Steerer (2027+)","description":"\u003cp\u003eUpgrade your mountain bike's front-end performance with the RockShox Fork CSU - Linear XL Zeb Ultimate B1+ (2027+) by Sram. This replacement crown steerer unit is expertly crafted to fit ZEB forks, incorporating advanced features like Linear XL spring compatibility and ButterWagon Tech upper tubes. These innovations work together to reduce friction and ensure consistent, smooth suspension performance, making your ride more controlled and responsive on rugged trails.\u003c\/p\u003e\n\n\u003cp\u003eDesigned specifically for demanding trail and gravity riding, this CSU restores chassis stiffness and sharp steering precision, critical for maintaining confidence and control in aggressive riding scenarios. Its anodised black finish not only offers a sleek look but also provides durability and resistance to wear, ensuring long-lasting reliability. Whether you’re upgrading your existing suspension or replacing worn components, this part delivers the performance and quality you expect from Sram.\u003c\/p\u003e\n\n\u003cp\u003eCompatible with 27.5\" and 29\" wheels and featuring a 44 mm offset with a 1.8\" tapered steerer, this unit fits ZEB Select B1+, ZEB Flight Attendant B1+, and ZEB Ultimate B1+ (2027+) models. Explore the full range of \u003ca href=\"\/collections\/sram-rockshox-components\"\u003eSram RockShox components\u003c\/a\u003e and enhance your setup with related \u003ca href=\"\/collections\/rockshox-fork-spares\"\u003efork spares\u003c\/a\u003e to keep your bike performing at its best.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRestoring front-end chassis stiffness and steering precision for improved control\u003c\/li\u003e\n  \u003cli\u003eEnhancing suspension consistency through ButterWagon Tech upper tubes\u003c\/li\u003e\n  \u003cli\u003eCompatibility with Linear XL springs for versatile suspension tuning\u003c\/li\u003e\n  \u003cli\u003eDurable anodised finish offering wear resistance and long-term reliability\u003c\/li\u003e\n  \u003cli\u003eOptimized for aggressive trail and gravity riding demands\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUse on forks outside the 2027+ ZEB Select, Flight Attendant, or Ultimate B1+ models\u003c\/li\u003e\n  \u003cli\u003eCompatibility with non-linear spring systems or older ZEB fork generations\u003c\/li\u003e\n  \u003cli\u003eCasual or entry-level riding where advanced suspension performance is less critical\u003c\/li\u003e\n  \u003cli\u003eReplacement for complete fork assemblies—intended as a crown steerer unit only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this CSU compatible with all RockShox ZEB forks?\u003c\/strong\u003e\u003cbr\u003eThis unit is designed specifically for 2027+ ZEB Select B1+, ZEB Flight Attendant B1+, and ZEB Ultimate B1+ models. It is not compatible with earlier versions or other RockShox forks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this with any spring system?\u003c\/strong\u003e\u003cbr\u003eThis CSU supports Linear XL spring compatibility, so it is optimized for Linear XL springs rather than coil or other spring types.\u003c\/p\u003e","brand":"Sram","offers":[{"title":"44","offer_id":46771329564847,"sku":"RSP8090129","price":342.31,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/RSP8090129_69130.jpg?v=1776243710","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/rockshox-fork-csu-linear-xl-zeb-ultimate-b1-replacement-crown-steerer-2027","provider":"Swinnerton Cycles","version":"1.0","type":"link"}