Arroyo Tamarock AT 275/65R18

Looking for a 275/65R18 all terrain tire? The Arroyo Tamarock AT is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 275/65R18 means

In the size 275/65R18, 275 is the section width in millimeters (10.83 in), 65 is the aspect ratio — the sidewall stands 65% as tall as the tire is wide, or 178.8 mm (7.04 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 32.07 inches, turning roughly 629 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 18 inches — when clearance is tight, go by the published figure rather than the nominal size math.

Specifications

Frequently asked questions

Will 275/65R18 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 275/65R18, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 275/65R18 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.

What kind of tire is the Arroyo Tamarock AT?

The Arroyo Tamarock AT in 275/65R18 is a all terrain tire.

Keep shopping

Shop all 275/65R18 tires, see every Arroyo Tamarock AT size, explore all terrain tires, or view all tires at ThreePiece.us.