Shimano XTR Di2 SM-FD905-D Front Derailleur Adaptor Direct Mount Type 689228647169 | eBay
Adapter for Flat Mount Caliper on IS Mount Frame - A.S. Solutions
Shimano Flat Mount 160 mm To Flat Mount 180 mm Disc Brake Caliper Adapter, Black | Bikeinn
Amazon.com : DJC Bike Chairing Spider Adapter for Shimano Direct Mount to 104BCD M6100 M7100 M8100 M9100 XTR SLX (for Shimano to 104BCD) : Sports & Outdoors
Shimano Adapter For XTR Di2 Front Derailleur Mount (E Type) - Performance Bicycle
Amazon.com : DJC Bike Chairing Spider Adapter for Shimano Direct Mount to 104BCD M6100 M7100 M8100 M9100 XTR SLX (for Shimano to 104BCD) : Sports & Outdoors