Pirelli PIR Scorpion All Terrain Plus 275/65R18

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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.

The service description on this tire decodes to a load index of 116 — a maximum load of 2,756 lbs per tire. The speed symbol T corresponds to a maximum sustained speed of 118 mph.

Specifications

Frequently asked questions

What are the treadwear and warranty ratings on the Pirelli Scorpion All Terrain Plus?

This tire carries a treadwear grade of 640, traction grade A, temperature grade B under UTQG. The manufacturer's warranty is 50K.

What does 116T mean on the Pirelli Scorpion All Terrain Plus?

116T breaks down as load index 116 — rated for 2,756 lbs per tire — with a T speed rating, good for a maximum sustained 118 mph.

What kind of tire is the Pirelli Scorpion All Terrain Plus?

The Pirelli Scorpion All Terrain Plus in 275/65R18 is a all terrain tire.

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