Goatlinks are designed to optimize the derailleur's position relative to your cassette. Offered in two versions - a 10-speed and 11-speed, each is intended to improve the shifting of your 1x drivetrain. - Optimized for using a Shimano XT 8000 or XTR 9000 Rear Derailleur with a 10-42, 10-44, 11-45, 11-46 rear cassette setup - Compatible with M8000 (XT) and M9000 (XTR) series eleven-speed Shimano rear derailleurs - Double chainrings are not currently supported - Triple chainrings are not supported - Direct Mount-native frames and SRAM derailleurs are not supported

The RoadLink DM (Direct Mount) is the RoadLink designed to fit Shimano’s current generation R8000 Ultegra and R9100 Dura-Ace rear derailleurs. It serves as a simple device to offset the position of the rear derailleur, making it possible to run a wide-range mountain bike style cassette. It’s an ideal solution for riders looking to convert their road, gravel, cyclocross, or commuter. - Fits Shimano R9100-generation Dura-Ace and R8000-generation Ultegra rear derailleurs - CNC machined from 6061-T6 aluminum with stainless steel bolt - Does not change the derailleurs total chain wrap capacity - Fits standard derailleur hangers only - Best used with Single or Double Setups - see manufacturer's site for more details