{"product_id":"trek-slr-ultra-light-carbon-seatmast-cap-135-175mm-5-20mm-offset-10mm-oval-rails","title":"Trek SLR Ultra-Light Carbon Seatmast Cap 135\/175mm 5\/20mm Offset 10mm Oval Rails","description":"\u003cp\u003e60-Day Returns  ·  Family Owned Since 1973  ·  Ships From Wisconsin\u003cbr\u003eShopAboutFeedback\u003cbr\u003eTrek SLR Ultra-Light Carbon Seatmast Cap 135\/175mm 5\/20mm Offset 10mm Oval Rails\u003cbr\u003eAbout This Item\u003cbr\u003eProduct Description\u003cbr\u003eThe Trek SLR Ultra-Light Carbon Seatmast Cap was originally developed for the exceptionally lightweight Émonda SLR 10 and is Trek’s lightest seatmast cap option for compatible road bikes using a round Trek seatmast.\u003cbr\u003eThis upgraded SLR version is lighter than Trek’s standard round carbon seatmast cap and features a one-bolt rotary head design for easy fore\/aft positioning and virtually infinite saddle-angle adjustment.\u003cbr\u003eThis multi-variation listing includes all four length and offset configurations. Each cap is supplied with 10mm oval saddle rail clamp ears for compatible oversized carbon saddle rails.\u003cbr\u003eAvailable Variations\u003cbr\u003eSize\tLength\tOffset\tClaimed Weight\u003cbr\u003e135mm x 5mm\t135mm\t5mm\t117g\u003cbr\u003e135mm x 20mm\t135mm\t20mm\t117g\u003cbr\u003e175mm x 5mm\t175mm\t5mm\t134g\u003cbr\u003e175mm x 20mm\t175mm\t20mm\t134g\u003cbr\u003eKey Features\u003cbr\u003eGenuine Trek SLR replacement seatmast cap\u003cbr\u003eUltra-light carbon construction\u003cbr\u003eLighter than Trek’s standard round carbon seatmast cap\u003cbr\u003eOriginally developed for the Émonda SLR 10\u003cbr\u003eDirect fit for compatible Trek road bikes using round seatmasts\u003cbr\u003eOne-bolt rotary head design\u003cbr\u003eEasy fore\/aft saddle adjustment\u003cbr\u003eInfinite-angle saddle adjustment\u003cbr\u003eIncludes 10mm oval rail clamp ears\u003cbr\u003eFour length and setback options available\u003cbr\u003eSpecifications\u003cbr\u003eBrand: Trek\u003cbr\u003eSeries: SLR Ultra-Light\u003cbr\u003eProduct Type: Seatmast Cap\u003cbr\u003eMaterial: Carbon\u003cbr\u003eLength Options: 135mm \/ 175mm\u003cbr\u003eOffset Options: 5mm \/ 20mm\u003cbr\u003eSaddle Clamp Design: Single Bolt \/ Rotary Head\u003cbr\u003eIncluded Rail Clamp: 10mm Oval\u003cbr\u003e135mm Claimed Weight: 117g\u003cbr\u003e175mm Claimed Weight: 134g\u003cbr\u003eRail Compatibility\u003cbr\u003eThese seatmast caps are supplied with 10mm oval saddle clamp ears, intended for compatible oversized saddle rails.\u003cbr\u003e7mm round rail clamp ears are not included and must be purchased separately if you intend to use a saddle with standard 7x7mm round rails.\u003cbr\u003eConfirm your saddle’s rail dimensions before ordering.\u003cbr\u003eCompatibility\u003cbr\u003eDesigned as a direct-fit replacement for compatible Trek road bikes equipped with round seatmasts.\u003cbr\u003eBecause Trek has used multiple seatpost and seatmast systems across different generations, confirm that your bicycle uses the round Trek seatmast design and select the appropriate length and offset for your fit.\u003cbr\u003eIncluded\u003cbr\u003eOne Trek SLR Ultra-Light carbon seatmast cap in selected size\u003cbr\u003eRotary saddle clamp \/ head hardware\u003cbr\u003e10mm oval saddle rail clamp ears\u003cbr\u003eNot Included\u003cbr\u003e7mm round saddle rail ears\u003cbr\u003eSaddle\u003cbr\u003eAdditional installation hardware unless pictured\u003cbr\u003eCondition\u003cbr\u003eNew\u003cbr\u003eNon-retail packaged\u003cbr\u003eSpecifications\u003cbr\u003eBrand\tBontrager\u003cbr\u003eCondition\tNew\u003cbr\u003eColour\tBlack\u003cbr\u003eUnbeatable Year-Round Bargains\u003cbr\u003eWheel \u0026amp; Sprocket has been family owned since 1973, with shops across Milwaukee, the Fox Valley, Madison and Chicagoland. Every order is picked and packed by people who ride, and if something is not right a mechanic will answer you — not a script.\u003cbr\u003eShop The Outlet Store\u003cbr\u003eWheel \u0026amp; Sprocket Outlet · Item bontragerseatpostcap27250\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 with tags: A brand-new, unused, and unworn item (including handmade items) in the original ...\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\"\u003eColor\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eBlack\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\"\u003eStyle\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eRound Mast\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\"\u003eSport Activity\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eCycling\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\"\u003ePart Type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eSeatpost Cap\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\"\u003eModel Year\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003e2026\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\"\u003eFor Bike Type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eRoad\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\"\u003eFinish\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eCarbon\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\"\u003eDepartment\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eUnisex Adults\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\/Region of Manufacture\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eChina\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\"\u003eCompatible Brand\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eTrek\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\"\u003eBike Type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eSeatpost (cap)\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\"\u003eBontrager\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e","brand":"Ebikechoose","offers":[{"title":"175mm x 5mm","offer_id":67860234797238,"sku":"SRC-198221331784-497352101278-1","price":171.53,"currency_code":"USD","in_stock":true},{"title":"175mm x 20mm","offer_id":67860234830006,"sku":"SRC-198221331784-497352101278-1","price":171.53,"currency_code":"USD","in_stock":true},{"title":"135mm x 20mm","offer_id":67860234862774,"sku":"SRC-198221331784-497352101279-1","price":171.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/8766\/9430\/files\/s-l1600_fd122c6a-bc32-4ad5-9867-4a44bd43a3cf.jpg?v=1793119277","url":"https:\/\/www.ebikechoose.com\/products\/trek-slr-ultra-light-carbon-seatmast-cap-135-175mm-5-20mm-offset-10mm-oval-rails","provider":"Ebikechoose","version":"1.0","type":"link"}