The rear derailleur
B-axle bracket unit serves as an attachment point between a traditional derailleur hanger and a
Shimano XTR M9000 rear derailleur. The
B-Axle link is made to be a sacrificial part in the event of a crash, hopefully bending before the way more expensive derailleur body.
- Shimano OEM part
- For Shimano XTR M9000 rear derailleurs
- 40t max cassette