SRAM GX Eagle Rear Derailleur Pulley Kit

You should replace them if you notice the teeth on the wheels have become sharp or pointed, or if there is noticeable side-to-side play in the bearings. Worn pulleys often cause sloppy shifting, increased drivetrain noise, and poor chain retention.

This specific kit is designed for SRAM GX Eagle 12-speed rear derailleurs. While many Eagle components share similarities, always verify your specific derailleur model to ensure the pulley wheel diameter and bearing type match your existing setup.

Yes, this kit comes with both the guide (upper) and tension (lower) pulley wheels required to service your GX Eagle derailleur. It is best practice to replace both at the same time to ensure consistent shifting performance.

This is a straightforward maintenance task that can be done at home with basic tools, typically just a hex key. You will need to remove the derailleur cage bolts to swap the wheels, so be careful not to lose the small spacers or washers during disassembly.

Yes, these are the factory-spec replacement wheels, maintaining the same aluminum construction as the original parts that came with your GX Eagle derailleur. They are engineered to provide the intended balance of durability and shifting precision.