Dunlop’s KR448 and KR451 are the Official Tires of the MotoAmerica and Canadian Superbike Series. The KR448 and KR451 have numerous amateur and national road racing titles. The KR Series offer unparalleled grip, stability, and rider feedback through the use of Dunlop’s proprietary compounds and manufacturing techniques such as N-TEC, JLB, and JLT technologies. The KR448 and KR451 provide the ultimate in track performance for club racers and professionals alike.