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Pirelli
Pirelli P-Zero (PZ4) 325/30ZR23XL 109(Y) - 3057000
Pirelli P-Zero (PZ4) 325/30ZR23XL 109(Y) - 3057000
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The Pirelli P-Zero (PZ4) in 325/30R23 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
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 25.71 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
| Size | 325/30ZR23XL |
| Tire Type | Summer |
| Service Description | 109Y |
| Load Index | 109 |
| Speed Rating | Y |
| Load Range | Extra Load |
| Section Width (mm) | 325 |
| Aspect Ratio | 30 |
| Overall Diameter (in) | 25.71 |
| Tread Depth (/32") | 8 |
| Treadwear | 280 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 280AAA |
Frequently asked questions
What does 109Y mean on the Pirelli P-Zero (PZ4)?
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.
What kind of tire is the Pirelli P-Zero (PZ4)?
The Pirelli P-Zero (PZ4) in 325/30R23 is a summer tire.
What are the treadwear and warranty ratings on the Pirelli P-Zero (PZ4)?
This tire carries a treadwear grade of 280, traction grade AA, temperature grade A under UTQG.
Keep shopping
Browse Pirelli tires, see every Pirelli P-Zero (PZ4) size, or view all tires at ThreePiece.us.
- BRAND:
- Pirelli
- Model:
- P-Zero (PZ4)
- Size:
- 325/30ZR23XL
- Aspect Ratio:
- 30
- Load Index:
- 109
- Load Range:
- Extra Load
- Section Width:
- 325
- Service Description:
- 109Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 25.71
- Tire Type:
- Summer
- Traction:
- AA
- Tread Wear:
- 280
- Tread Depth:
- 8
- UQTG:
- 280AAA
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