Shimano  XTR Shadow Rear Derailleur RD-M980

The new 10-speed XTR rear derailleur sees a re-engineered architecture that provides a smooth, linear feel at the shifter and is remarkably stable despite suspension movement, trail chatter or inevitable cable contamination. Designed to be used with Rapidfire and compatible shifters. The shadow rear derailleur RD-M980-GS is only compatible with 10-speed Dyna-Sys shifting components.

Features
• 10 Speed Dyna-sys
• Shadow low-profile design reduces the risk of snagging
• Minimum cog: 11T
• Low profile design
• Maximum cog: 36T
• Maximum front difference: 18T
• Total capacity: GS: 35T; SGS: 41T