Inspired by American Flat Track racing, the Dunlop K180 is a street legal tire with a dirt track look.Flat-track riders on off-road 450s can fit the K180 3.00-21 size to their stock wheel.Also popular for riders building custom bikes with a street-legal f Inspired by American Flat Track racing, the Dunlop K180 is a street legal tire with a dirt track look.Flat-track riders on off-road 450s can fit the K180 3.00-21 size to their stock wheel.Also popular for riders building custom bikes with a street-legal f