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Pirelli
Pirelli P-Zero (PZ4) Sport 285/45R20XL 112W - 3805700
Pirelli P-Zero (PZ4) Sport 285/45R20XL 112W - 3805700
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Shop the Pirelli P-Zero (PZ4) Sport 285/45R20 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 285/45R20 means
In the size 285/45R20, 285 is the section width in millimeters (11.22 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 128.2 mm (5.05 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 30.10 inches, turning roughly 670 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 112 — a maximum load of 2,469 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | 285/45R20XL |
| Tire Type | Summer |
| Service Description | 112W |
| Load Index | 112 |
| Speed Rating | W |
| Load Range | Extra Load |
| Section Width (mm) | 285 |
| Aspect Ratio | 45 |
| Overall Diameter (in) | 30.08 |
| Tread Depth (/32") | 9 |
| Treadwear | 280 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 280AAA |
Frequently asked questions
What are the treadwear and warranty ratings on the Pirelli P-Zero (PZ4) Sport?
This tire carries a treadwear grade of 280, traction grade AA, temperature grade A under UTQG.
What does 112W mean on the Pirelli P-Zero (PZ4) Sport?
112W breaks down as load index 112 — rated for 2,469 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
What kind of tire is the Pirelli P-Zero (PZ4) Sport?
The Pirelli P-Zero (PZ4) Sport in 285/45R20 is a summer tire.
Keep shopping
Shop all 285/45R20 tires, browse Pirelli tires, see every Pirelli P-Zero (PZ4) Sport size, or view all tires at ThreePiece.us.
- BRAND:
- Pirelli
- Model:
- P-Zero (PZ4) Sport
- Size:
- 285/45R20XL
- Aspect Ratio:
- 45
- Load Index:
- 112
- Load Range:
- Extra Load
- Section Width:
- 285
- Service Description:
- 112W
- Speed Index:
- W
- Temperature:
- A
- Tire Rim Diameter:
- 30.08
- Tire Type:
- Summer
- Traction:
- AA
- Tread Wear:
- 280
- Tread Depth:
- 9
- UQTG:
- 280AAA
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