Shimano Saint Rear Derailleur-RD-M820-SS

-SHIMANO SHADOW RD+ Short cage manage chain slapping nor dropping

-MTB 10-speed system stable against cable contamination

-Silent Bump Stopper

-Durable Super Wide Link

-Low-profile skid plate design

-Close Ratio compatible

-Mode converter

-Direct Mount Rear Derailleur option

-Total capacity: 25T

-Weight: 280g (without mode converter)