SRAM 10 Speed Jockey Wheels - Suit X.0 2008-2011 - XX 2010+ YGroup_7033416745005 The Shimano HG81 Cassette features

The Shimano HG81 Cassette features a refined tooth profile for HG-X chain and Shadow rear derailleur

RD-M9100-SGS (XTR)

V4 caliper uses four phenolic pistons to give more usable power

Comfortable handles

Will also work on most freewheel clusters

SRAM 10 Speed Jockey Wheels - Suit X.0 2008-2011 - XX 2010+ YGroup_7033416745005 The Shimano HG81 Cassette featuresWorn jockey wheels are often overlooked during annual maintenance. To ensure your drivetrain is operating smoothly, replace your derailleur's jockey wheels when they look worn. For 2008 and newer 9 or 10 speed non Type 2 XO derailleurs, purchase 'Suit 2008 2011' For 10 speed Type 2 XO derailleurs, purchase 'Suit Type 2 (2012+)'