Dunlop Harley Davidson D401 Rear Tire (160/70B-17) The D401 has been a favorite among Harley riders for many years. It comes in a variety of sizes to fit Harley cruisers. The D401 is the approved Harley-Davidson&#174; cruiser tire. Co-Branded: Dunlop is the original brand of tire certified to say Harley-Davidson&#174; right on the sidewall. Made in U.S.A.