Feature(may vary by option.)

●All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
●Use Di2 system checker to update component firmware
●Compatible with thinner, next generation electric SD300 wires and R9150 and R8150 series systems
●Features three SD300 wire ports
●Shared fixing method with BT-DN110

[Black]

Description

Built to work with the new Di2 Wireless Dura-Ace system we plug and play the Shimano BT-DN300 Battery in our derailleur to get to shifting. The new battery is lightweight and packs a punch, running and lasting longer than the previous version of Di2.