Shimano Deore XT RD-M8100 Rear Derailleur (Black) (1 x 12 Speed) (Long Cage) (SGS) (Shadow Plus)

The Shimano Deore XT RD-M8100-SGS rear derailleur delivers smooth and stable shifting, while allowing the use of a 51 tooth cog in the back to handle steep pitches on any trail.

Features:

• Long cage derailleur allows for 51 tooth cog in the back
• Bigger, more efficient 13 teeth pulley

Specifications: 
Drivetrain Speeds: 12 
Cage Length: Long 
Weight: 284g 
Max Low Cog: 51t 
Max High Cog: 10t 
Capacity: 41t