{"product_id":"shimano-grx-fd-rx815-di2-front-derailleur-11-speed-down-swing-braze-on","title":"Shimano GRX FD-RX815 Di2 Front Derailleur, 11-Speed, Down Swing, Braze-On","description":"\u003cp\u003e60-Day Returns  ·  Family Owned Since 1973  ·  Ships From Wisconsin\u003cbr\u003eShopAboutFeedback\u003cbr\u003eShimano GRX FD-RX815 Di2 Front Derailleur, 11-Speed, Down Swing, Braze-On\u003cbr\u003eAbout This Item\u003cbr\u003eShimano GRX FD-RX815 Di2 Front Derailleur – 11-Speed, Down Swing, Braze-On\u003cbr\u003eThe Shimano GRX FD-RX815 Di2 Front Derailleur is purpose-built for gravel and adventure cycling, delivering smooth, reliable electronic shifting across mixed terrain. Designed for 2x GRX Di2 drivetrains, this front derailleur features a down-swing, braze-on design with optimized geometry for wider tire clearance. Engineered to accommodate chainstay angles of 61–66° and top gears of 46–50T, it ensures precise, consistent shifts for 11-speed drivetrains in rugged conditions.\u003cbr\u003eWhy you’ll like it\u003cbr\u003eGRX-specific design – engineered for gravel and adventure performance.\u003cbr\u003eDi2 electronic shifting – delivers precise, reliable shifts at the push of a button.\u003cbr\u003eBraze-on mount – lightweight and clean installation.\u003cbr\u003eDown-swing configuration – optimized for frame compatibility and wide tire clearance.\u003cbr\u003eSupports 46–50T top gear – ideal for gravel and endurance gearing setups.\u003cbr\u003eChainline: 46 mm – designed to match GRX 2x drivetrains.\u003cbr\u003eWhat’s in the box\u003cbr\u003e1 × Shimano GRX FD-RX815 Di2 Front Derailleur (braze-on, down swing)\u003cbr\u003eTech specs\u003cbr\u003eManufacturer\tShimano\u003cbr\u003eSeries\tGRX\u003cbr\u003eModel\tFD-RX815\u003cbr\u003eManufacturer Part #\tKFDRX815F\u003cbr\u003eSpeed\t11-speed (front)\u003cbr\u003eMount Type\tBraze-on\u003cbr\u003eConfiguration\tDown swing\u003cbr\u003eChainstay Angle\t61–66°\u003cbr\u003eTop Gear Capacity\t46–50T\u003cbr\u003eChainline\t46 mm\u003cbr\u003eApplication\tGravel \/ Adventure \/ Endurance road (Di2 electronic)\u003cbr\u003eFit notes\u003cbr\u003eDesigned for Shimano GRX Di2 2x 11-speed drivetrains.\u003cbr\u003eRequires Di2 wiring and shifters (sold separately).\u003cbr\u003eBraze-on mount; an adapter may be required for clamp-style frames.\u003cbr\u003eCompatible with top gear chainrings between 46–50T.\u003cbr\u003eSpecifications\u003cbr\u003eBrand\tShimano\u003cbr\u003eCondition\tNew\u003cbr\u003ePart type\tFront Derailleur\u003cbr\u003eBike type\tGravel\u003cbr\u003eSize\t11-Speed\u003cbr\u003eColour\tSilver\u003cbr\u003eManufacturer part number\t600827\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 617395140527\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\"\u003eColor\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eSilver\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\"\u003e11-Speed\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\"\u003eProduct Style\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eDi2 Down-Swing Braze-On\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\"\u003eProduct Model\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d8dde3;padding:8px 10px;text-align:left;vertical-align:top\"\u003eShimano GRX FD-RX815\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\"\u003eFront Derailleur\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\"\u003eGravel\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\"\u003eShimano\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\"\u003eJapan\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":67831355146422,"sku":"SRC-366464922400-DEFAULT-1","price":103.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/8766\/9430\/files\/s-l1600_3a0caff7-fa11-4774-acb4-b5b27ce03425.jpg?v=1793053510","url":"https:\/\/www.ebikechoose.com\/products\/shimano-grx-fd-rx815-di2-front-derailleur-11-speed-down-swing-braze-on","provider":"Ebikechoose","version":"1.0","type":"link"}