NX is SRAM's 1x drive train for the masses. All the key functionality features of high end 1x derailleurs are built in.

Features
X-Horizon geometry shifts faster, puts an end to ghost shifting, and reduces shift force and chain slap
Same roller clutch and CageLock features as high-end models
Cannot be used with double or triple chainrings

Specifications
Cage Length: Long
Chain Wrap Capacity (teeth): 25 teeth
Drivetrain Speeds: 11
Largest Cog (teeth): 42
Rear Der/Shifter Compatibility: SRAM X-Actuation
Rear Derailleur Mount Type: 10x1 Standard

Mfr Claimed Weight
322g