Other

These 6mm long bolts are designed for single chainrings that have non-threaded standoffs. Uses a double hex head interface so you don't have to use a chainring nut spanner. - 6mm length - Made in the US out of 7075-T6 Aluminum - Has hex heads on both the bolt and nut for easy installation - Max torque of 7-8 Nm with light grease on threads only

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