{"product_id":"rockshox-deluxe-ultimate-rct-185x50-trunnion-trek-top-fuel-rear-shock","title":"RockShox Deluxe Ultimate RCT 185x50 Trunnion Trek Top Fuel Rear Shock","description":"\u003cp\u003eProduct Description\u003cbr\u003eThe RockShox Deluxe Ultimate RCT is a premium rear air shock custom tuned by the Trek Suspension Lab for compatible Trek Top Fuel 29 suspension platforms.\u003cbr\u003eBuilt around a DebonAir air spring and Ultimate-level RCT damper, this Trek-specific shock delivers supple initial travel, controlled mid-stroke support, and efficient performance across technical climbs, fast descents, and varied trail conditions.\u003cbr\u003eThe damper provides external rebound adjustment, adjustable compression, and a two-position Open\/Firm lever. Its compact trunnion upper mount and Trek-specific lower mounting dimensions are designed to work with the suspension kinematics of compatible Top Fuel frames.\u003cbr\u003eKey Features\u003cbr\u003eGenuine RockShox Deluxe Ultimate rear shock\u003cbr\u003eCustom tuned by Trek Suspension Lab\u003cbr\u003eDesigned for compatible Trek Top Fuel 29 models\u003cbr\u003e185 x 50mm eye-to-eye and stroke\u003cbr\u003eTrunnion upper mount\u003cbr\u003eDebonAir air spring\u003cbr\u003eUltimate RCT damper\u003cbr\u003eExternal rebound adjustment\u003cbr\u003eAdjustable compression damping\u003cbr\u003eTwo-position Open\/Firm lever\u003cbr\u003eMedium rebound tune\u003cbr\u003eMedium compression tune\u003cbr\u003eTwo factory-installed volume-reducer tokens\u003cbr\u003eE-bike approved\u003cbr\u003eBlack body with black graphics\u003cbr\u003eNon-retail packaged\u003cbr\u003eSpecifications\u003cbr\u003eBrand: RockShox\u003cbr\u003eModel: Deluxe Ultimate\u003cbr\u003eModel Code: RS-DLX-ULT-B2\u003cbr\u003eExample Serial Number: 33T10611541\u003cbr\u003eProduct Type: Rear Air Shock\u003cbr\u003eIntended Platform: Compatible Trek Top Fuel 29\u003cbr\u003eEye-to-Eye Length: 185mm\u003cbr\u003eStroke: 50mm\u003cbr\u003eConfiguration: 185x50 TR\u003cbr\u003eAir Spring: DebonAir\u003cbr\u003eDamper Type: RCT\u003cbr\u003eRemote: No\u003cbr\u003eRebound Adjustment: External\u003cbr\u003eRebound Clicks: 10\u003cbr\u003eCompression Adjustment: Open\/Firm with external compression adjustment\u003cbr\u003eRebound Tune: Medium\u003cbr\u003eCompression Tune: Medium\u003cbr\u003ePedal Tune: Not applicable\u003cbr\u003eLockout Force: 380\u003cbr\u003eVolume Reducers: 2 tokens\u003cbr\u003eCheck Tune: Standard\u003cbr\u003eMaximum Air Pressure: 325 PSI\u003cbr\u003eE-Bike Approved: Yes\u003cbr\u003eShock Body Color: Black\u003cbr\u003eDecal Color: Black\u003cbr\u003eDecal Orientation: A\u003cbr\u003eMounting Dimensions\u003cbr\u003eUpper Mount\u003cbr\u003eMount Type: Trunnion\u003cbr\u003eWidth: 54mm\u003cbr\u003eHardware Diameter: 10mm\u003cbr\u003eLower Mount\u003cbr\u003eMount Type: Standard eyelet \/ pin\u003cbr\u003eWidth: 30mm\u003cbr\u003eHardware Diameter: 8mm\u003cbr\u003eCompatibility\u003cbr\u003eDesigned for compatible Trek Top Fuel 29 frames requiring:\u003cbr\u003e185mm eye-to-eye length\u003cbr\u003e50mm stroke\u003cbr\u003eTrunnion upper mounting\u003cbr\u003e54mm upper mounting width\u003cbr\u003e10mm upper hardware diameter\u003cbr\u003e30mm lower mounting width\u003cbr\u003e8mm lower hardware diameter\u003cbr\u003eCompatible Trek Suspension Lab tune\u003cbr\u003eSome Trek references may list the eye-to-eye measurement as approximately 184mm, while RockShox identifies this shock as 185x50(TR).\u003cbr\u003eRear shocks are highly frame-specific. Matching the eye-to-eye length and stroke alone does not guarantee compatibility. Please confirm the exact bicycle model, model year, frame size, mounting dimensions, stroke, and required suspension tune before ordering.\u003cbr\u003eIncluded\u003cbr\u003eRockShox Deluxe Ultimate RCT 185 x 50mm rear shock\u003cbr\u003eFactory-installed volume-reducer tokens\u003cbr\u003eIncludes only what is pictured and described\u003cbr\u003eWarranty and Notes\u003cbr\u003eGenuine Trek and RockShox replacement component\u003cbr\u003eCustom Trek Suspension Lab tune\u003cbr\u003e33T10611541 is an example serial number for model reference only\u003cbr\u003eThe serial number on the item received may differ\u003cbr\u003eFrame mounting bolts and additional hardware are included only when pictured or stated\u003cbr\u003eProfessional installation and suspension setup are recommended\u003cbr\u003eDo not exceed the maximum air pressure of 325 PSI\u003cbr\u003eManufacturer warranty eligibility is subject to applicable Trek and RockShox terms\u003cbr\u003eCondition\u003cbr\u003eNew\u003cbr\u003eNon-retail packaged\u003cbr\u003eGenuine RockShox and Trek OEM product\u003cbr\u003eIncludes only what is pictured and described\u003cbr\u003e$149.95\u003cbr\u003eNEW\u003cbr\u003eRockshox\u003cbr\u003ePowered by Frooition\u003c\/p\u003e\u003ch2\u003eItem specifics\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #d8dde3\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top;width:28%;background:#f6f7f8\"\u003eCondition\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eNew: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top;width:28%;background:#f6f7f8\"\u003eBrand\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eRockshox\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top;width:28%;background:#f6f7f8\"\u003eItem Weight\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003e3.0000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top;width:28%;background:#f6f7f8\"\u003eMPN\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003e00.4118.271.046\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top;width:28%;background:#f6f7f8\"\u003eSize\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003e185mm x 50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top;width:28%;background:#f6f7f8\"\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eTaiwan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e","brand":"Ebikechoose","offers":[{"title":"Default Title","offer_id":67831378444470,"sku":"SRC-366465036672-DEFAULT-1","price":233.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/8766\/9430\/files\/s-l1600_458b33d4-4d47-4a3b-968d-0eb48a9996a3.jpg?v=1793054121","url":"https:\/\/www.ebikechoose.com\/de\/products\/rockshox-deluxe-ultimate-rct-185x50-trunnion-trek-top-fuel-rear-shock","provider":"Ebikechoose","version":"1.0","type":"link"}