Shimano RD-M9100 Rear Derailleur XTR Shadow+ 12-Speed Long 51T Maximum Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button... Shimano RD-M9100 Rear Derailleur XTR Shadow+ 12-Speed Long 51T Maximum Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button...