Shimano XTR CS-M980 Cassette 10-speed
XTR 10-speed cassette for the Shimano Dyna-Sys drivetrain. The cassette is equipped with a 3-piece spider arm structure which provides ultimate rigidity. The special tooth profile for HG-X chains and Shadow rear derailleur offer quick, smooth and consistent shifting. 5 sprockets are made of titanium to save weight. Aluminium lock ring included.
Only compatible with super narrow HG-X 10-speed chains.