{"product_id":"shimano-sm-jc40-di2-external-frame-junction-box-4-port","title":"Shimano SM-JC40 Di2 External Frame Junction Box 4-Port","description":"Shimano Di2 Frame Junction Box\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\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\u003cli\u003eUse Di2 system checker to update component firmware from http:\/\/e-tubeproject.shimano.com\/\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":45207517921477,"sku":"CY6760","price":37.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/9194\/7461\/files\/CY6760.jpg?v=1760615112","url":"https:\/\/trekbikesflorida.com\/products\/shimano-sm-jc40-di2-external-frame-junction-box-4-port","provider":"Trek Bicycle Stores of Florida","version":"1.0","type":"link"}