All Eagle rear derailleurswork the same way and have their clutch with Cage Lock features. The main differences are in materials used, and the top-level derailleurs have tighter tolerances and more precise manufacturing and assembly methods to improve … See more

The cassettes have the most dramatic differences, using three different construction methods across the four options. All are 12 … See more

If you’re looking to get the biggest durability bang for your buck, look to the chains. SRAM’s product managers told us the difference from … See more

The shifters’internals are virtually identical across the range, so it’s mainly materials and adjustability improvements as you move up. All are available in eMTB versions with single click downshifts, too. 1. NX:Full plastic construction, but is the lightest shifter with … See more