The RoadLink™ derailleur hanger extension is a unique patented device that offsets the position of your road derailleur to make it possible to run a wide-range mountain bike style cassette. It is an ideal solution for riders looking to convert their road, gravel, cyclocross, or commuter drivetrain bike to attain the simplicity and reduced weight of a single front chainring but without giving up the gear range of a double. It is also great for riders with double chainring bikes that want lower gearing for those ultra steep climbs. It does not compromise the shifting in the smaller cogs of the cassette but yet it enables the derailleur to work with as large as a 40T cassette. Easily installed in less than 5 minutes by any home mechanic! For more technical details on the RoadLink™, check out Wolf Tooth's RoadLink Tech Page. The RoadLink™ is optimized for use with ten or eleven-speed 11-36t and 11-40t cassettes and works great with Wolf Tooth’s 40-tooth GC cassette extenders and Drop-Stop chainrings. The RoadLink™ RD adaper installs in minutes, is optimized around Shimano ten- or eleven-speed road derailleurs and shifters, but works well with SRAM and Campy too. It can be used with single or double chainrings. Here is a list of recommended applications: Single Chainring: Road Cyclocross Commuting Drop-bar mountain Double Chainring: Road Touring Drop-bar mountain US Patent D 798,197
