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Dunlop D401 Front Tire - All Sizes & Sidewalls Available

If you ride a Harley, you've probably already seen these tires — because they came on the bike from the factory. The D401 has been Harley-Davidson's front tire of choice for years, and for good reason. Dunlop built this tire specifically around what cruiser bikes need: stable steering, consistent wear, and grip you can trust in the rain as much as the dry.The tread compound is formulated for cruiser use — not borrowed from a sport tire or a touring tire and relabeled. That means it behaves predictably under the weight and geometry of a V-twin, and it doesn't go off a cliff in wet conditions the way some harder compounds do. Most riders get solid mileage out of a front D401 before it needs replacing, and it tends to wear evenly rather than cupping out in the center early.One thing worth calling out: the tread profile is computer-optimized specifically to fight that center cupping issue that plagues a lot of front cruiser tires. It's a small detail that makes a real difference over the life of the tire.Harley-Davidson branding is molded into the sidewall — it's the only tire brand licensed to do that, which tells you something about how tight the relationship between Dunlop and HD actually is.

Pick Your Size and Style

Four variants cover the most common front fitments on Harley-Davidson cruisers:
Part NumberSizeLoad / SpeedSidewall
DUN45064660100/90-19 M/C 57H TL57 / HBlack Wall
DUN45064215100/90-19 M/C 57H TL57 / HWide Whitewall
DUN45064638130/90B16 M/C 73H TL73 / HBlack Wall
DUN4506454590/90-19 M/C 52H TL52 / HBlack Wall
The Wide Whitewall (WWW) variant is the same tire mechanically — same compound, same profile — just with the classic white stripe that a lot of Softail and Heritage riders prefer for the look. If your bike originally came with whitewalls, this keeps that stock appearance while giving you a fresh tire underneath.All four are bias construction, tubeless, and rated for Cruiser/Touring use. Speed rating is H across the board (good to 130 mph), so no concerns there for highway riding.

Specification

Tire Type: Cruiser / TouringConstruction: BiasTubeless: YesSpeed Rating: HSidewall: Black Wall or Wide Whitewall (size dependent)OEM fitment: Yes — original equipment on many Harley-Davidson models

Worth Knowing Before You Buy

Double-check your rim diameter and current tire size before ordering — the 19-inch and 16-inch fitments are not interchangeable, and the 90mm and 100mm widths require different rim widths. If you're replacing a stock tire and haven't changed wheels, just match the size that's already on the bike. If you've modified your setup, verify fitment with your installer first.

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