SteepandCheap.com
SRAM Eagle 90 T-Type Rear Derailleur B-Knuckle Kit
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From SteepandCheap.com
The SRAM Eagle 90 B-knuckle kit replaces the pivot point that connects a T-Type Eagle 90 derailleur to the derailleur hanger. The kit includes the full inner, middle, and outer B-knuckle assembly along with the cable guide, cover, and bolts, rebuilding that entire connection rather than swapping a single worn piece.