SRAM X01 Eagle Rear Derailleur - 12-Speed Long Cage 52t Max Lunar Model-Flexi while others are superb in

while others are superb in a very limited set of conditions and suffer in most others

CroMoly: flex-tuned shell and HLX+Gel padding

Truly all-season in nature its 42mm width makes it your set-it-and-forget-it gravel tire

Angled rib pattern slightly harder compound designed to match articulation points of your hands for added control

Quick-release attachment for easy installation and removal

SRAM X01 Eagle Rear Derailleur - 12-Speed Long Cage 52t Max Lunar Model-Flexi while others are superb inThe SRAM X01 Eagle Rear Derailleur features an updated cage architecture to provide better chain management. Type 3 clutch is smoother and more durable 14T lower pulley Includes a chain gap tool that makes it easy to set up the correct chain length Rear Derailleur Mount Type 10x1 Standard Rear Der Shifter Compatibility SRAM X Actuation Cage Length Long Drivetrain Speeds 12 Color Lunar Chain Wrap Capacity (teeth) 42 Largest Cog 52