{"product_id":"shimano-ew-jc304-di2-junction-box-4-ports-use-with-ew-sd300","title":"Shimano EW-JC304 Di2 Junction Box - 4 Ports, Use With EW-SD300","description":"\u003cp\u003eShimano Di2 Frame Junction Box\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFrame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount\u003c\/li\u003e\n\u003cli\u003eAll Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions\u003c\/li\u003e\n\u003cli\u003eUse Di2 system checker to update component firmware from http:\/\/e-tubeproject.shimano.com\/\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":48316907815152,"sku":"CY8903","price":34.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/3592\/3952\/files\/26451_CY8903.jpg?v=1780815028","url":"https:\/\/coloradocyclist.com\/products\/shimano-ew-jc304-di2-junction-box-4-ports-use-with-ew-sd300","provider":"Colorado Cyclist","version":"1.0","type":"link"}