{"product_id":"shimano-grx-di2-rd-rx815-2-x-11speed","title":"Shimano GRX Di2 RD-RX815 (2 x 11Speed)","description":"\u003cp data-path-to-node=\"2\"\u003e\u003cb data-path-to-node=\"2\" data-index-in-node=\"0\"\u003eDigital Precision. Rough Terrain Ready.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"3\" id=\"p-rc_a7f605cb6737c91f-594\"\u003eThe RD-RX815 stands out with its integrated \u003cb data-path-to-node=\"3\" data-index-in-node=\"44\"\u003eShimano Shadow RD+ chain stabilizer\u003c\/b\u003e. \u003cspan class=\"citation-1208 citation-end-1208\"\u003eThis toggleable clutch system prevents chain slap and drops by increasing tension on the cage, ensuring a silent and secure drivetrain over technical descents.\u003csup class=\"superscript\" data-turn-source-index=\"3\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e Because it is a Di2 component, shifting is managed by a high-torque motor that delivers crisp, perfect gear changes even under heavy pedaling loads or when the derailleur is caked in grit.\u003c\/p\u003e\n\u003cp data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"0\"\u003eWhy the RD-RX815 is the Gravel Enthusiast's Choice:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\" id=\"p-rc_a7f605cb6737c91f-595\"\u003e\u003cspan class=\"citation-1207\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-1207\"\u003eShadow RD+ Clutch Technology:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-1207 citation-end-1207\"\u003e Features an on\/off switch for the chain stabilizer.\u003csup class=\"superscript\" data-turn-source-index=\"4\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e When engaged, it virtually eliminates chain movement on rough terrain; when off, it allows for easy wheel removal.\u003c\/p\u003e\n\u003cp\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eInstant Di2 Shifting:\u003c\/b\u003e Experience the speed and accuracy of electronic shifting. With a light tap, the digital signal commands the derailleur to move with sub-millimeter precision, removing the \"vague\" feeling of mechanical cables in dirty conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"0\"\u003eOptimized for 2x Drivetrains:\u003c\/b\u003e Specifically designed to work with Shimano's gravel-specific 2x11Speed setups, providing a wide gear range for steep climbs and fast descents.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,3,0\" id=\"p-rc_a7f605cb6737c91f-596\"\u003e\u003cb data-path-to-node=\"5,3,0\" data-index-in-node=\"0\"\u003eMassive Cassette Compatibility:\u003c\/b\u003e\u003cspan class=\"citation-1206\"\u003e Supports a maximum low sprocket of \u003c\/span\u003e\u003cb data-path-to-node=\"5,3,0\" data-index-in-node=\"67\"\u003e\u003cspan class=\"citation-1206\"\u003e34T\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-1206 citation-end-1206\"\u003e, allowing you to run a 1:1 (or better) gear ratio when paired with GRX cranksets for effortless climbing on loaded bikepacking trips.\u003csup class=\"superscript\" data-turn-source-index=\"5\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,4,0\" id=\"p-rc_a7f605cb6737c91f-597\"\u003e\u003cb data-path-to-node=\"5,4,0\" data-index-in-node=\"0\"\u003eE-TUBE Project Customizable:\u003c\/b\u003e\u003cspan class=\"citation-1205\"\u003e Connect to the E-TUBE app to customize shifting speed, set up \u003c\/span\u003e\u003cb data-path-to-node=\"5,4,0\" data-index-in-node=\"91\"\u003e\u003cspan class=\"citation-1205\"\u003eSynchronized Shifting\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-1205 citation-end-1205\"\u003e (automatic front derailleur movement), and monitor system battery health.\u003csup class=\"superscript\" data-turn-source-index=\"6\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,5,0\"\u003e\u003cb data-path-to-node=\"5,5,0\" data-index-in-node=\"0\"\u003eLow-Profile Shadow Design:\u003c\/b\u003e The derailleur body sits closer to the frame, tucked out of harm's way to reduce the risk of impact from rocks, stumps, or trail debris.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eModel:\u003c\/b\u003e RD-RX815\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003eSeries:\u003c\/b\u003e GRX DI2 (11Speed)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003eChain Management:\u003c\/b\u003e Shadow RD+ (Clutch)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,3,0\"\u003e\u003cb data-path-to-node=\"7,3,0\" data-index-in-node=\"0\"\u003eMax Low Sprocket:\u003c\/b\u003e 34T\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,4,0\"\u003e\u003cb data-path-to-node=\"7,4,0\" data-index-in-node=\"0\"\u003eMin Low Sprocket:\u003c\/b\u003e 30T\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,5,0\"\u003e\u003cb data-path-to-node=\"7,5,0\" data-index-in-node=\"0\"\u003ePulley Bearings:\u003c\/b\u003e Sealed Cartridge\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,6,0\"\u003e\u003cb data-path-to-node=\"7,6,0\" data-index-in-node=\"0\"\u003eWeight:\u003c\/b\u003e ~287g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,7,0\"\u003e\u003cb data-path-to-node=\"7,7,0\" data-index-in-node=\"0\"\u003eConnectivity:\u003c\/b\u003e E-Tube SD50 port\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"8\"\u003e\n\u003cp data-path-to-node=\"9,0\"\u003e\u003cb data-path-to-node=\"9,0\" data-index-in-node=\"0\"\u003eThe Alegro Perspective:\u003c\/b\u003e In the shop, we consider the RX815 the \"brain\" of a high-end gravel build. The clutch is the real hero here. It makes your bike remarkably quiet on gravel roads. If you're currently running a mechanical group and struggle with dropped chains or noisy shifting, this is the single most impactful component you can upgrade. It’s a set-it-and-forget-it piece of tech that thrives on abuse.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003eSilent Chain Control. Electronic Reliability. Conquer the Backroads with Shimano GRX Di2.\u003c\/b\u003e\u003c\/p\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":48590037188831,"sku":"IRDRX815","price":435.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/5452\/3103\/files\/260241-01_1.jpg?v=1773504615","url":"https:\/\/alegrocycles.com\/products\/shimano-grx-di2-rd-rx815-2-x-11speed","provider":"Alegro Cycles","version":"1.0","type":"link"}