SRAM’s MTB Groupset Hierarchy

Derailleur

Before we inspect the SRAM MTB groupset hierarchy, it’s useful to clarify a few of the specific terms that SRAM uses.

Eagle: When SRAM introduced their flagship 1 x 12 gearing system, they named it Eagle and applied it to all their 1 x 12-speed groupsets, so that’s an easy way to identify a 12-speed from SRAM.

AXS: The name of SRAM’s electronic, wireless shifting technology.

Tiers of the SRAM MTB Eagle groupset hierarchy:
here’s an overview in order of most affordable to least affordable.

SX Eagle (more affordable) found on many complete bicycle

NX Eagle

GX Eagle

X01 Eagle

XX Eagle (flagship)

Chains

For SRAM Eagle 12-speed chains, the hierarchy from entry-level to top-end is:

Level Chain Notes

1 SX Eagle Basic OEM chain, solid but heaviest and shortest wear life.

2 NX Eagle Similar performance, slightly better finish and durability.

3 GX Eagle The sweet spot for value, durability, and shifting quality.

4 X01 Eagle Premium hardened materials, lighter, noticeably longer wear life.

5 XX1 Eagle Top mechanical Eagle chain, lightest and longest-wearing.

6 XX SL Eagle Transmission Current flagship Transmission-series chain. Designed for T-Type drivetrains.