The GR7 rear derailleur is designed for a 1x10 speed drivetrain. An aluminum body with a steel cage provides durability in a lightweight package and H/L and B-limit screws gives great adjustablity. It is Shimano road compatable and M10x1 standard mount only.
Shimano road compatable10 speedLong Cage, 42TChain wrap capacity 50T243g
