sram rear derailleur sx eagle aluminum 12 speed a1: black size

Sram: this new sx eagle derailleur is your 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.
The sx eagle is cross compatible with much of the eagle ecosystem, making it easy to personalize and upgrading your ride when you are ready.
Features:
a full featured eagle derailleur, compatible with the eagle coloursystem.
X-sync™ pulley technology provides greater efficiency, crisper shifting, and quieter operation.
Cage lock offers discovery-level riders easy wheel removal.
Specificationsspeed (rd): 12scable pull ratio: x-actuationcage (rd): longmax tooth: 50colour (rd): blackpulley bearings material: steelcage material (rd): steel