{"product_id":"shimano-ew-jc304-4-port-junction-sd300","title":"Shimano EW-JC304 4 Port Junction - SD300","description":"\u003cp\u003e\u003cstrong\u003eShimano EW-JC304 4 Port Junction - SD300\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Shimano EW-JC304 4 Port Junction SD300 is a compact and reliable junction box designed to connect multiple Shimano Di2 electronic shifting components. Allowing communication between shifters, derailleurs, batteries, and other compatible Di2 devices, it forms a critical part of modern Shimano electronic drivetrain systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eConnects up to four Shimano Di2 components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible with Shimano SD300 electronic wiring systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompact design for clean integration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSimple installation and setup\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReliable communication between Di2 components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupports modern Shimano electronic drivetrains\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGenuine Shimano replacement part\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIdeal for custom builds and Di2 upgrades\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eReliable Di2 System Connectivity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe EW-JC304 acts as a central connection point within Shimano Di2 systems, ensuring seamless communication between drivetrain components for fast, accurate, and dependable electronic shifting performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompact and Easy to Integrate\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIts compact design allows the junction box to be neatly installed within the frame, handlebar area, or other protected locations, helping maintain a clean and professional looking bike build.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDesigned for Modern Shimano Electronic Groupsets\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCompatible with Shimano's SD300 wiring platform, the EW-JC304 supports a wide range of current Di2 road, gravel, and mountain bike systems, making it ideal for both new builds and replacement applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSimple Installation and Expansion\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWith four available connection ports, the junction box provides flexibility when adding or configuring Di2 components, making installation straightforward while supporting future system upgrades.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGenuine Shimano Quality\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured to Shimano's exacting standards, the EW-JC304 delivers the reliability and durability expected from one of the world's leading drivetrain manufacturers.\u003c\/span\u003e\u003c\/p\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":42745289736385,"sku":"IEWJC304","price":20.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/4754\/4001\/files\/EW-JC304.png?v=1689894256","url":"https:\/\/bikes.com.au\/products\/shimano-ew-jc304-4-port-junction-sd300","provider":"bikes.com.au","version":"1.0","type":"link"}