Shimano Saint RD-M820 1x10 Short Cage MTB Rear Derailleur

Features
. Increased spring tension
. Increased rigidity for twist and wear resistance
. 1x10 drivetrain compatibility
. Downhill and Freeride design
. Dyna-Sys and Shadow+ technologies for increased pedalling performance
. Shadow+ technology with integrated urethane bump stopper doubling
. Weight: 270g