{"product_id":"rockshox-upper-piston-assembly-for-reverb-axs-b1-seatpost-34-9-2026","title":"RockShox Upper Piston Assembly for Reverb AXS B1+ Seatpost 34.9 (2026+)","description":"\u003cp\u003eEnhance the performance of your Reverb AXS B1+ (2026+) dropper seatpost with the RockShox Seatpost Upper Piston Assembly. This precision-engineered component includes the upper piston\/valve and shaft, designed specifically to maintain smooth and reliable operation. Crafted by SRAM, it ensures seamless compatibility and optimal function for your dropper post.\u003c\/p\u003e\n\n\u003cp\u003eInstalling genuine SRAM parts guarantees the longevity and efficiency of your bike’s components. This upper piston assembly is essential for riders who demand consistent performance and easy maintenance from their dropper seatpost system.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRestoring smooth dropper post actuation\u003c\/li\u003e\n  \u003cli\u003eMaintaining optimal hydraulic function\u003c\/li\u003e\n  \u003cli\u003eEnsuring compatibility with Reverb AXS B1+ (2026+) models\u003c\/li\u003e\n  \u003cli\u003eProlonging the lifespan of your seatpost\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 with non-SRAM or incompatible dropper posts\u003c\/li\u003e\n  \u003cli\u003eInstallation without proper tools or knowledge\u003c\/li\u003e\n  \u003cli\u003eSubstituting for other seatpost components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this assembly compatible with earlier Reverb models?\u003c\/strong\u003e\u003cbr\u003eNo, it is designed exclusively for Reverb AXS B1+ models from 2026 onwards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install this part myself?\u003c\/strong\u003e\u003cbr\u003eInstallation is recommended by professionals or experienced mechanics to ensure optimal performance and safety.\u003c\/p\u003e","brand":"Sram","offers":[{"title":"175mm","offer_id":46187451351215,"sku":"RS063010","price":127.84,"currency_code":"GBP","in_stock":true},{"title":"100mm","offer_id":46187451383983,"sku":"RS8063007","price":127.84,"currency_code":"GBP","in_stock":true},{"title":"125mm","offer_id":46187451416751,"sku":"RS8063008","price":127.84,"currency_code":"GBP","in_stock":true},{"title":"150mm","offer_id":46187451449519,"sku":"RS8063009","price":127.84,"currency_code":"GBP","in_stock":true},{"title":"200mm","offer_id":46187451482287,"sku":"RS8063011","price":127.84,"currency_code":"GBP","in_stock":true},{"title":"225mm","offer_id":46187451515055,"sku":"RS8063012","price":127.84,"currency_code":"GBP","in_stock":true},{"title":"250mm","offer_id":46187451547823,"sku":"RS8063013","price":127.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/RS8063007_65993.jpg?v=1768533011","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/rockshox-upper-piston-assembly-for-reverb-axs-b1-seatpost-34-9-2026","provider":"Swinnerton Cycles","version":"1.0","type":"link"}