SHIMANO DEORE M5100 Shifter Right M5100 M5120 Rear Derailleur 11 Speed MTB Mountain Bike Groupset 1x11S Bikes Parts

The SHIMANO DEORE M5100 rear derailleur uses the SHIMANO SHADOW RD + (hidden rear derailleur) design to achieve consistent mountain bike shifting performance on rough roads. The narrow profile design avoids damage caused by rocks. In addition, Shimano's chain stabilization technology reduces chain shedding and keeps the drive system silent in all gears.

1x11-speed SHIMANO SHADOW RD + (hidden rear dial) rear derailleur Stable drive system on the forest road Narrow profile design to avoid rock damage Chain stabilization device reduces chain shedding, impact and noise The drive system remains silent in all gears Reduce the rear derailleur and chain tension at low speed Larger 13T guide wheels