Grit Master UHP 285/45R22

The Grit Master UHP in 285/45R22 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 285/45R22 means

In the size 285/45R22, 285 is the section width in millimeters (11.22 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 128.2 mm (5.05 in) — R denotes radial construction, and 22 is the wheel diameter in inches. That works out to an overall diameter of about 32.10 inches, turning roughly 628 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 22 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 114 — a maximum load of 2,601 lbs per tire. The speed symbol V corresponds to a maximum sustained speed of 149 mph.

Specifications

Frequently asked questions

What does 114V mean on the Grit Master UHP?

114V breaks down as load index 114 — rated for 2,601 lbs per tire — with a V speed rating, good for a maximum sustained 149 mph.

Will 285/45R22 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 285/45R22, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 285/45R22 tire in stock to compare options.

How fast does this tire ship?

Every order at ThreePiece.us ships free, with fast delivery from a nationwide warehouse network. Affirm financing is available at checkout.

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