{"product_id":"shimano-ultegra-di2-internal-routing-junction-box","title":"Shimano Ultegra Di2 Internal Routing Junction Box","description":"\u003cp\u003eShimano's E-Tube Di2 Junction Box (also known as the B junction) connects all your component and battery wires to make assembly much easier. It's a crucial item along with the five required wire sections to operate your Ultegra 6770, Ultegra 6870, or Dura-Ace 9070 Di2 shift system. The E-Tube Di2 Junction Box is available in two configurations: Internal (SM-JC41) and External (SM-JC40).\u003c\/p\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":44835973660869,"sku":"WBSPTB005DTRW0E","price":33.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/3745\/9397\/files\/61i6uB47AXL.jpg?v=1750408467","url":"https:\/\/onlinesportsmall.com\/products\/shimano-ultegra-di2-internal-routing-junction-box","provider":"Onlinesportsmall","version":"1.0","type":"link"}