About this item

• Made from high-quality durable materials designed to withstand extreme riding conditions and ensure long-lasting performance.
• Engineered with 's advanced E-tube technology for seamless, reliable electronic shifting communication between components.
• Features two versatile ports compatible with EW-SD300 wiring, enabling versatile installation options for comprehensive bike setup.
• Optimized for use with Di2 electronic shifting systems, ensuring precise gear changes and enhanced ride responsiveness.
• Includes firmware management features, allowing users to easily update component software for optimal compatibility and performance stability.