{"product_id":"shimano-jc41-di2-internal-frame-junction-box-bicycle-computers","title":"SHIMANO JC41 Di2 Internal Frame Junction Box Bicycle Computers","description":"\u003ch1\u003e\u003cstrong\u003eSHIMANO JC41 Di2 Internal Frame Junction Box Bicycle Computers\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003eStreamline your Di2 setup with Shimano’s compact internal junction box, designed to connect and manage up to four E‑Tube components inside your frame.\u003c\/p\u003e\n\u003ch3\u003eBest for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRiders building or upgrading a Shimano Di2 electronic shifting system\u003c\/li\u003e\n\u003cli\u003eCyclists who want a clean, internal cable routing solution\u003c\/li\u003e\n\u003cli\u003eMechanics seeking reliable multi‑port connectivity for Di2 components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNot ideal for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMechanical shifting systems\u003c\/li\u003e\n\u003cli\u003eFrames without internal routing capability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat this product does\u003c\/h3\u003e\n\u003cp\u003eThe SM‑JC41 junction box connects up to four Di2 components via SD50 E‑Tube wires, enabling seamless communication between derailleurs, cockpit junctions, and the battery mount—all hidden inside the frame for a clean look.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4‑Port Connectivity:\u003c\/strong\u003e Links front derailleur, rear derailleur, cockpit junction, and battery mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Fits neatly inside the frame for a clean aesthetic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Communication:\u003c\/strong\u003e Ensures smooth electronic shifting performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware Consistency:\u003c\/strong\u003e All Di2 components must run the same firmware version to avoid malfunctions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eClean internal routing for a professional build\u003c\/li\u003e\n\u003cli\u003eCentralized connection hub for multiple Di2 components\u003c\/li\u003e\n\u003cli\u003eDurable construction for long‑term reliability\u003c\/li\u003e\n\u003cli\u003eSupports seamless integration with Shimano’s E‑Tube system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eModel: Shimano SM‑JC41\u003c\/li\u003e\n\u003cli\u003ePorts: 4 (SD50 E‑Tube compatible)\u003c\/li\u003e\n\u003cli\u003ePlacement: Internal frame junction\u003c\/li\u003e\n\u003cli\u003eCompatibility: Shimano Di2 electronic shifting systems\u003c\/li\u003e\n\u003cli\u003eFirmware Requirement: All components must share the same firmware version\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SHIMANO","offers":[{"title":"Black \/ 4 Port","offer_id":43163087765552,"sku":"ISMJC41","price":29.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0272\/9394\/1808\/files\/2642612.jpg?v=1780072335","url":"https:\/\/movatik.com\/products\/shimano-jc41-di2-internal-frame-junction-box-bicycle-computers","provider":"Movatik","version":"1.0","type":"link"}