N+1 BikesShimano XTR RD-M9000 Rear Derailleur P-Axle Unit and O-Ring
$9
The creators who use it, or GearCred, may earn a commission when you buy through these links, at no extra cost to you.
From N+1 Bikes
Shimano Miscellaneous Rear Derailleur PartsFor repairs on Shimano Rear Derailleur