{"product_id":"shimano-dura-ace-ultegra-di2-sm-jc41-internal-wire-junction-box","title":"Shimano Dura-Ace\/Ultegra Di2 SM-JC41 Internal Wire Junction Box","description":"\u003cp\u003eThis is the Shimano Ultegra Di2 Internal Junction Box. This box is referred to as the junction box \"B\" on a Di2 build. The SM-JC41 is for use with internal wiring setups and is the main centre of e-tube Di2 systems.. Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount\n\u003cbr\u003e. All Di2 components on the bicycle require the same firmware version \n\u003cbr\u003e. Using Di2 components with different firmware versions may cause malfunctions\u003c\/p\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":45347024732269,"sku":"ISMJC41","price":59.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9436\/9389\/files\/shimano-dura-ace-ultegra-di2-sm-jc41-internal-wire-junction-box-ISMJC41__27559.1697194033.jpg?v=1781610515","url":"https:\/\/alchemycycletrader.com.au\/products\/shimano-dura-ace-ultegra-di2-sm-jc41-internal-wire-junction-box","provider":"Alchemy Cycle Trader","version":"1.0","type":"link"}