Di2 Parts Shimano EW-AD305 Junction-B Conversion Adapter

The Shimano EW-AD305 Junction-B Conversion Adapter is designed for seamless integration within Shimanos Di2 electronic shifting system.

It allows you to connect components with different E-TUBE cable standards (EW-SD50 and EW-SD300), making it easy to upgrade or mix Di2 parts across generations.

• E-TUBE compatibility connects older EW-SD50 and newer EW-SD300 E-TUBE wires.
• Di2 integration works with Shimanos latest 12-speed Di2 systems as well as earlier models.
• Compact and easy to install without adding bulk.
• Reliable Connection ensures smooth electronic shifting performance.