American Roadstar Pro AS 175/65R15

The American Roadstar Pro AS in 175/65R15 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 175/65R15 means

In the size 175/65R15, 175 is the section width in millimeters (6.89 in), 65 is the aspect ratio — the sidewall stands 65% as tall as the tire is wide, or 113.8 mm (4.48 in) — R denotes radial construction, and 15 is the wheel diameter in inches. That works out to an overall diameter of about 23.96 inches, turning roughly 842 revolutions per mile. Overall diameter is what matters for speedometer accuracy and clearance when you change sizes, so compare it — not just the width — against your current tire.

The manufacturer lists the overall diameter of this specific tire as 15 inches — when clearance is tight, go by the published figure rather than the nominal size math.

The service description on this tire decodes to a load index of 84 — a maximum load of 1,102 lbs per tire. The speed symbol H corresponds to a maximum sustained speed of 130 mph.

Specifications

Frequently asked questions

What does 84H mean on the American Roadstar Pro AS?

84H breaks down as load index 84 — rated for 1,102 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.

What are the treadwear and warranty ratings on the American Roadstar Pro AS?

This tire carries a treadwear grade of 500, traction grade A, temperature grade A under UTQG.

Will 175/65R15 tires fit my vehicle?

Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 175/65R15, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 175/65R15 tire in stock to compare options.

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