Pirelli PZero Winter 255/30R20XL 92W - 3732400

The Pirelli PZero Winter in 255/30R20 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 255/30R20 means

In the size 255/30R20, 255 is the section width in millimeters (10.04 in), 30 is the aspect ratio — the sidewall stands 30% as tall as the tire is wide, or 76.5 mm (3.01 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 26.02 inches, turning roughly 775 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 service description on this tire decodes to a load index of 92 — a maximum load of 1,389 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.

Specifications

Frequently asked questions

What does 92W mean on the Pirelli PZero Winter?

92W breaks down as load index 92 — rated for 1,389 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.

What kind of tire is the Pirelli PZero Winter?

The Pirelli PZero Winter in 255/30R20 is a winter tire.

Will 255/30R20 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 255/30R20, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right.

Keep shopping

Browse Pirelli tires, see every Pirelli PZero Winter size, explore winter snow tires, or view all tires at ThreePiece.us.