Dunlop Winter Maxx WM02 225/40R18XL 92T - 10044116

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What 225/40R18 means

In the size 225/40R18, 225 is the section width in millimeters (8.86 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 90.0 mm (3.54 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 25.09 inches, turning roughly 804 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 25.39 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 92 — a maximum load of 1,389 lbs per tire. The speed symbol T corresponds to a maximum sustained speed of 118 mph.

Specifications

Frequently asked questions

Will 225/40R18 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 225/40R18, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 225/40R18 tire in stock to compare options.

What does 92T mean on the Dunlop Winter Maxx WM02?

92T breaks down as load index 92 — rated for 1,389 lbs per tire — with a T speed rating, good for a maximum sustained 118 mph.

What kind of tire is the Dunlop Winter Maxx WM02?

The Dunlop Winter Maxx WM02 in 225/40R18 is a winter tire.

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