Direct Mount Derailleur Hanger Shimano Trek Specialized Giant Canyon Cannondale | eBay
The redesign of Shimano rear derailleurs as part of the R9100 launch allows for direct mount hangers to be used. Few manufacturers offer a compatible hanger, but Cant made use of the
Direct Mount Rear Derailleur--Don't Forget to Remove the Link! - YouTube
Standard Mount vs. Direct Mount Derailleur Hangers