Explore the pinnacle of cycling connectivity with Shimano's Electric Wire Cables, specifically designed for seamless integration with Shimano DI2 systems. These E-Tube cables, model number EW-SD50, are a crucial component for riders looking to maintain the integrity and performance of their electronic shifting setups. Manufactured in Japan, the cables boast a durable plastic construction wrapped in a sleek black sheath, ensuring both longevity and aesthetics. Whether you're upgrading your bike or replacing worn-out cables, this single item ensures a reliable connexion between your shifter and derailleurs, preserving the precision of your gear shifts.