{"product_id":"shimano-ew-jc304-4-port-junction-di2","title":"Shimano EW-JC304 4-PORT JUNCTION Di2","description":"\u003cp data-start=\"0\" data-end=\"262\"\u003eThe \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\" role=\"button\" tabindex=\"0\"\u003e\u003cspan class=\"whitespace-normal\"\u003eShimano EW-JC304 4-Port Junction\u003c\/span\u003e\u003c\/span\u003e is a compact internal wiring junction designed for Shimano Di2 electronic shifting systems. It acts as a central connection hub, allowing up to four Shimano E-Tube SD300 wires to connect together inside the bike frame.\u003c\/p\u003e\n\u003cp data-start=\"264\" data-end=\"419\"\u003ePrimarily used with newer 12-speed Di2 road and gravel groupsets, the EW-JC304 helps create a cleaner internal routing setup by linking components such as:\u003c\/p\u003e\n\u003cul data-start=\"420\" data-end=\"498\"\u003e\n\u003cli data-section-id=\"gyjwgj\" data-start=\"420\" data-end=\"436\"\u003eShift levers\u003c\/li\u003e\n\u003cli data-section-id=\"3wv35c\" data-start=\"437\" data-end=\"457\"\u003eFront derailleur\u003c\/li\u003e\n\u003cli data-section-id=\"un46ol\" data-start=\"458\" data-end=\"477\"\u003eRear derailleur\u003c\/li\u003e\n\u003cli data-section-id=\"pzfh5u\" data-start=\"478\" data-end=\"498\"\u003eInternal battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"500\" data-end=\"863\"\u003eIts small size allows it to be hidden neatly inside the downtube, bottom bracket area, or handlebars for a tidy build. The unit is compatible only with Shimano’s \u003cstrong\u003enewer EW-SD300 \u003c\/strong\u003ethin-wire system, not older SD50 Di2 wiring. Shimano designed it as a simple, reliable, water-resistant junction for modern internally routed bikes.\u003c\/p\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":48674027602172,"sku":"210000099233","price":43.0,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/labicicletta.com\/products\/shimano-ew-jc304-4-port-junction-di2","provider":"La Bicicletta Toronto","version":"1.0","type":"link"}