SRAM GX Eagle 12-Speed Chain
Top PickWhat We Like
- 126 links suit wide-range 1x cassettes
- Quiet running and positive shifts under load
- Same link geometry as SRAM XX1 Eagle
- Light at 140 grams
Worth Noting
- Solid pins despite hollow-pin listing copy
- Single-use PowerLock; keep a spare
- Links
- 126
- Speeds
- 12
- Weight
- 4.94 oz
- Connector
- PowerLock, single-use
Read the full review
The GX Eagle is a 1x chain, and SRAM says so plainly: not for use with front derailleurs. If your bike still runs a double, this one is not for you. If it runs a single ring and a wide cassette, the 126-link box is the first thing you notice — there is more chain in the bag than a 116-link chain gives you, so a big cassette on a long chainstay does not leave you splicing.
The plates use the same link geometry as SRAM's XX1 Eagle, with solid pins under a silver-gray finish. Ours ran quieter than any other 12-speed we fitted, with shifts that landed positively under load, and at 140 grams it adds almost nothing to the bike.
On an Eagle bike it is a fit-and-forget chain, and the thing worth correcting is the description: this is a solid-pin chain, while some of the copy around it still says hollow pin. If you are buying for hollow pins, you are not getting them. Buy it for the geometry, the length, and the quiet instead, all of which are real.
Wear is the part to plan for. Keep the lube up and the cassette clean, because a dry, gritty 12-speed chain moves through its wear life quickly, and this one costs enough that you want the full run out of it. Fit it alongside a cassette that is not already hooked and it behaves like the flagship-adjacent part it is.
Bottom line: If you run a SRAM Eagle 1x12 drivetrain, this is the chain to fit: long enough for a huge cassette, quiet under load, and worth the premium for trail riding.