If your XTR shift rollers are worn out, you’ll find an equivalent replacement with this XTR shift roller set for 11-speed cassettes (RD-M9000/M9050). Additional Information: – Bearing: sealed double bearing – Switching steps: 11 – Max. teeth: 11 Type: jockey wheels Content / delivery size: 1 Shimano Pulley Set Suitability: Rear derailleur Compatible with: Shimano RD-M9050, RD-M9000 Dimensions Weight: 30 g