Pirelli PIR PZero 255/55R19XL

Looking for a 255/55R19 high performance tire? The Pirelli PZero is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 255/55R19 means

In the size 255/55R19, 255 is the section width in millimeters (10.04 in), 55 is the aspect ratio — the sidewall stands 55% as tall as the tire is wide, or 140.2 mm (5.52 in) — R denotes radial construction, and 19 is the wheel diameter in inches. That works out to an overall diameter of about 30.04 inches, turning roughly 671 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 19 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 111 — a maximum load of 2,403 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.

Specifications

Frequently asked questions

What kind of tire is the Pirelli PZero?

The Pirelli PZero in 255/55R19 is a high performance tire.

What are the treadwear and warranty ratings on the Pirelli PZero?

This tire carries a treadwear grade of 220, traction grade AA, temperature grade A under UTQG.

What does 111W mean on the Pirelli PZero?

111W breaks down as load index 111 — rated for 2,403 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.

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