Dunlop Harley-Davidson D401 Tires Engineered and tested with Harley-Davidson to provide maximum performance for Harley-Davidson cruiser bikes Advanced tread pattern and compound for improved wet and dry grip Computer-optimized tread profile reduces cupping for even wear 150/80B16 size for newer Dyna models H-rated for speeds up to 130 mph Made in the USA Dunlop Tire Tips Guide (pdf)