Shimano XT RD-M8100-GS Rear Derailleur – 12-Speed Medium Cage Black. Deore XT RD-M8100 Rear Derailleur
Offers fast and shockless shifting thanks to HYPERGLIDE+ technology
The low-profile design includes a bumper added to the derailleur pulley cage
Shimano Shadow RD+ technology reduces chain slap and creates a quieter drivetrain
Includes large 13t pulley
Drivetrain is silent in all gear positions with decreased rear derailleur and chain tension in low gear
| Rear Derailleur Mount Type |
Shimano Rear Direct Mount |
| Rear Derailleur Mount Type |
10×1 Standard |
| Rear Der/Shifter Compatibility |
Shimano Mountain |
| Color |
Black |
| Cage Length |
Medium |
| Drivetrain Speeds |
12 |
| Largest Cog |
45 |
