Sram SX Eagle MTB Mountain Bike 12 Speed Rear Derailleur Long Cage

Model: RD-SX
Series: SX Eagle
Color: Black
Speed: 12 Speed
Mount: Direct mount
Cage: Long Cage
Cable pull ratio: X-Actuation
Max sprocket: 50T
Drivetrain Configuration: 1x
Shift Technology: X-Actuation
Chain Technology: Eagle
Weight: approx 346g
New SX Eagle derailleur is entry point to the SRAM Eagle Ecosystem. 
Sharing many features with the rest of the Eagle Ecosystem like the proven SRAM 1x-specific X-HORIZON body design, it can accommodate both 11-50T and 10-50T cassettes. 
SX Eagle is cross compatible with much of the Eagle Ecosystem.