Pirelli PZero 325/30ZR23XL 109Y - 4093400

Looking for a 325/30R23 summer tire? The Pirelli PZero is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 325/30R23 means

In the size 325/30R23, 325 is the section width in millimeters (12.80 in), 30 is the aspect ratio — the sidewall stands 30% as tall as the tire is wide, or 97.5 mm (3.84 in) — R denotes radial construction, and 23 is the wheel diameter in inches. That works out to an overall diameter of about 30.68 inches, turning roughly 657 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 31 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 109 — a maximum load of 2,271 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.

Load Range E corresponds to a 10-ply rating.

Specifications

Frequently asked questions

What kind of tire is the Pirelli PZero?

The Pirelli PZero in 325/30R23 is a summer tire.

Will 325/30R23 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 325/30R23, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right.

What does 109Y mean on the Pirelli PZero?

109Y breaks down as load index 109 — rated for 2,271 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.

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