Since its introduction, the award-winning Wolf Tooth RoadLink has given riders the ability to easily increase the range of their Shimano road drivetrains while maintaining near-factory levels of chain wrap and shifting performance. The RoadLink DM (Direct Mount) is the RoadLink that fits Shimano’s current generation R8000 Ultegra and R9100 Dura-Ace rear derailleurs. Like the mountain-focused GoatLink, the RoadLink DM replaces Shimano’s stock Direct Mount allowing you to relocate the derailleur to provide clearance for larger-than-stock range cassettes while maintaining chain wrap and improving shifting. The result—larger gear ranges that riders want and expect for their road, commuter, gravel, and touring bicycles. Compatibility: Fits Shimano R9100-generation Dura-Ace, R8000-generation Ultegra, and R7000 105 rear derailleurs Fits standard derailleur hangers only Direct mount derailleur hangers are not supported. These are not common and the stock b-link that the RoadLink DM replaces will not be present on bikes with a direct mount derailleur hanger Optimized for use with 11-36t, 11-40t, and 11-42t 11-speed cassettes Will improve performance with 10-42t 11-speed cassettes, but not to factory levels Tech Specs: 20g weight (8g more than stock) CNC machined from 6061-T6 aluminum with stainless steel bolt Type II anodized in black Designed and manufactured in Minneapolis, MN USA