![Amazon.com : Shimano XTR RD-M9100 XTR 12-Speed Rear derailleur, GS Medium cage, for 10-45T/single Ring : Sports & Outdoors Amazon.com : Shimano XTR RD-M9100 XTR 12-Speed Rear derailleur, GS Medium cage, for 10-45T/single Ring : Sports & Outdoors](https://m.media-amazon.com/images/I/71nPaZymyrL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : Shimano XTR RD-M9100 XTR 12-Speed Rear derailleur, GS Medium cage, for 10-45T/single Ring : Sports & Outdoors
![New Shimano XTR M9100 Series Mountain Bike Components Debut new 12-speed, Ultra-Efficient Drive Train and FREEHUB System New Shimano XTR M9100 Series Mountain Bike Components Debut new 12-speed, Ultra-Efficient Drive Train and FREEHUB System](https://bike.shimano.com/content/productsite/en-US/information/news/new-shimano-xtr-m9100-series-mountain-bike-components-debut-new-/_jcr_content/productsite_newsarticle/body_parsys/image.img.jpg/1603326359737.jpg)
New Shimano XTR M9100 Series Mountain Bike Components Debut new 12-speed, Ultra-Efficient Drive Train and FREEHUB System
![XTR 1x12 Drivetrain (Shifter, Derailleur, Chain, Cassette) | Custom Component Kits | Build Your Bike | Chumba USA XTR 1x12 Drivetrain (Shifter, Derailleur, Chain, Cassette) | Custom Component Kits | Build Your Bike | Chumba USA](https://images.squarespace-cdn.com/content/v1/52f98c74e4b097d8674dc15e/1660680243740-1LW9K2J0HEVMI7ZOHK1C/Shimano+XTr+0+1x12+Drivetrain+Groupset-500x500.png?format=1000w)
XTR 1x12 Drivetrain (Shifter, Derailleur, Chain, Cassette) | Custom Component Kits | Build Your Bike | Chumba USA
![Amazon.com : Shimano XTR RD-M9100-GS Rear Derailleur - 12 Speed Medium Cage Gray with Clutch : Sports & Outdoors Amazon.com : Shimano XTR RD-M9100-GS Rear Derailleur - 12 Speed Medium Cage Gray with Clutch : Sports & Outdoors](https://m.media-amazon.com/images/I/41Ok-JRebFL._AC_UF1000,1000_QL80_.jpg)