The Shimano BM-DN100 Battery Mount is a reliable and essential accessory for your electronic shifting system. Weighing just 18 grams, this lightweight mount securely holds your Di2 battery in place, ensuring a stable and efficient power supply to your electronic drivetrain. Crafted with high-quality materials, the BM-DN100 is designed to withstand the rigors of cycling, providing durability and longevity. Its sleek and compact design allows for easy installation and maintenance, making it a convenient addition to your bike setup. Compatible with various Shimano Di2 systems, this battery mount offers a seamless integration with your electronic shifting components. Enhance the performance and reliability of your Di2 system with the Shimano BM-DN100 Battery Mount.