Park Tool dummy hub

The Park Tool Jakonáboj dummy hub is a practical tool that attaches to the right-hand dropout, replacing the rear wheel for maintenance or transport. It makes cleaning the chain easier and allows for safe transportation of your bicycle. Thanks to a roller that both rotates and slides, you can even shift gears while turning the cranks, which simplifies servicing. The tool is compatible with all rear derailleurs and chains, and can be mounted in both open dropouts and those for thru-axles up to 12mm in diameter.