This is a rear derailleur mount link for Shimano's XTR M9100 rear derailleur. A straight link is essential to optimal shifting performance and reliability.

Brake lever blades are easy to bend or break, but their sacrifice saves the more expensive parts of your brake system, which is a good thing! Shimano Hydraulic Disc Brake Lever Blades can be used on either the left or right lever, and these are for XTR 9020 brakes.

Shimano BT-R1A External Di2 Battery - 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 - Di2 External Battery, battery charger, and power cable are universal between Dura-Ace 9070, 7970, Ultegra 6870, 6770 and Alfine Di2 systems - Battery weight: 71 grams

- EW-WU111 D-Fly wireless transmitter - Shifting customization, system diagnosis and firmware updates can now be done through Bluetooth Smart on smart phones and tablets, using the eTube app - Also allows to send shifting and system data to compatible cycle computers via private ANT+ protocol - Requires BT-DN110 internal battery or BM-DN100 external battery mount

- Internal junction-A with two e-Tube ports - Externally facing charging port eases charging, especially for internal batteries - Mounts in road bar end or in frames with an integrated mounting point - For easier cable routing, use along with EW-JC130 three-way e-Tube cable

Shimano Di2 External Battery Mounts - 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