Shimano Dura-Ace RD-9000 Rear Derailleur Shifter Cable Adjuster Dura Ace 9000

New Shimano Dura Ace 9000 Rear Derailleur Cable Adjusting Assembly
This is a replacement barrel adjuster that threads into the back side of your rear derailleur. This adjuster allows you to make minor cable adjustments to the rear derailleur cable.
For: for Shimano Dura Ace 9000 / "B" fit for Ultegra RD-6800
Manufacturer Part Number: Y5XX98040