SRAM Eagle T-Type B-Knuckle Kit

The B-Knuckle is the main pivot assembly that connects your derailleur to the bike's frame. This kit replaces that specific structural section, which is often the part that sustains damage during a crash or impact.

No, this specific kit is engineered exclusively for SRAM Eagle 90 and 70 T-Type derailleurs. It will not fit older mechanical Eagle drivetrains or other non-T-Type models.

While the installation is straightforward, you will need a standard set of hex keys and potentially a torque wrench to ensure the assembly is tightened to the manufacturer's specifications. It is a manageable repair for most home mechanics, but take your time to ensure the pivot moves freely after installation.

Replacing just the B-Knuckle is a cost-effective way to restore your derailleur's performance if the rest of the unit, like the cage or clutch, is still in good working order. It saves you from discarding a functional derailleur simply because one structural component was damaged.

When installed correctly, this kit restores the original structural integrity of your derailleur, which is essential for crisp, accurate shifting. However, you should always perform a full derailleur adjustment, including limit screws and B-gap setting, after replacing any major structural component.