Arroyo Tamarock AT LT275/65R20

Looking for a 275/65R20 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 275/65R20 means

In the size 275/65R20, 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 20 is the wheel diameter in inches. That works out to an overall diameter of about 34.07 inches, turning roughly 592 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 20 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 126 — a maximum load of 3,748 lbs per tire. The speed symbol S corresponds to a maximum sustained speed of 112 mph.

Load Range E corresponds to a 10-ply rating.

Specifications

Frequently asked questions

What kind of tire is the Arroyo Tamarock AT?

The Arroyo Tamarock AT in 275/65R20 is a all terrain tire.

Will 275/65R20 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 275/65R20, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 275/65R20 tire in stock to compare options.

What does 126S mean on the Arroyo Tamarock AT?

126S breaks down as load index 126 — rated for 3,748 lbs per tire — with an S speed rating, good for a maximum sustained 112 mph.

Keep shopping

Shop all 275/65R20 tires, see every Arroyo Tamarock AT size, explore all terrain tires, or view all tires at ThreePiece.us.