{"product_id":"bm-dn100","title":"Shimano Di2  BM-DN100 Bluetooth Battery Mount for SM-BTR1","description":"Comes with removable aftermarket mounting tab, may or may not be useful for your setup. \n\nOlder Di2 setups running the SM-BTR1 external battery can gain wireless E-Tube connectivity and Synchronized Shift functionality without replacing the whole system, and this is the piece that makes that upgrade happen. The Shimano BM-DN100 Short Battery Mount isn't just a bracket—it's the master unit that adds Bluetooth communication to a Di2 drivetrain that predates the wireless era. The short version is the one to grab when the downtube real estate is tight or a longer mount would crowd the bottle cage or bottom bracket junction.\n\n\n","brand":"Shimano","offers":[{"title":"Default Title","offer_id":49544651243779,"sku":"8725","price":87.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0515\/4144\/2719\/files\/capture001114_84a248bd-45cf-438e-8d70-5d3aab859ae6.jpg?v=1788127380","url":"https:\/\/ejrecyclery.com\/en-de\/products\/bm-dn100","provider":"EJRecyclery - Cycling New \u0026 Used","version":"1.0","type":"link"}