The Dunlop K591 is the only tire that Harley-Davidson trusts in for its sports models. That's why the K591 is also the only tire released for sports models by the Harley-Davidson Motor Company. The K591 road tire leans on the K591 racing tires, provides excellent grip in all weather conditions, gives confidence when cornering and impresses with exceptional durability. Its unique tread pattern ensures even abrasion. Modeled on the K591 racing tire for optimal wet and dry grip The directional tread pattern minimizes uneven wear on the tire.