Brake and clutch cleaner, widely available.
By design it dissolves almost all contaminants that are commonly found on braking components, including: Wax (anti rust stuff for storage/shipping), grease and oil (from exploded CV joints or bearings and general handling), brake fluid. Doesn't affect the plastics rubbers or adhesives that are meant to be on/around braking systems.
As a safety critical application it is allowed to contain solvents that are otherwise difficult to get access to (solvents that actually work).