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Pirelli
Pirelli PZero All Season 255/40R20 XL 101H - 3942700
Pirelli PZero All Season 255/40R20 XL 101H - 3942700
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The Pirelli PZero All Season in 255/40R20 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 255/40R20 means
In the size 255/40R20, 255 is the section width in millimeters (10.04 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 102.0 mm (4.02 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 28.03 inches, turning roughly 719 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 101 — a maximum load of 1,819 lbs per tire. The speed symbol H corresponds to a maximum sustained speed of 130 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | 255/40R20 XL |
| Tire Type | All Season |
| Service Description | 101H |
| Load Index | 101 |
| Speed Rating | H |
| Load Range | Extra Load |
| Section Width (mm) | 255 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 28.03 |
| Tread Depth (/32") | 9 |
| Treadwear | 500 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 500AA |
Frequently asked questions
What does 101H mean on the Pirelli PZero All Season?
101H breaks down as load index 101 — rated for 1,819 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.
What kind of tire is the Pirelli PZero All Season?
The Pirelli PZero All Season in 255/40R20 is a all season tire.
What are the treadwear and warranty ratings on the Pirelli PZero All Season?
This tire carries a treadwear grade of 500, traction grade A, temperature grade A under UTQG.
Keep shopping
Shop all 255/40R20 tires, browse Pirelli tires, see every Pirelli PZero All Season size, or view all tires at ThreePiece.us.
- BRAND:
- Pirelli
- Model:
- PZero All Season
- Size:
- 255/40R20 XL
- Aspect Ratio:
- 40
- Load Index:
- 101
- Load Range:
- Extra Load
- Section Width:
- 255
- Service Description:
- 101H
- Speed Index:
- H
- Temperature:
- A
- Tire Rim Diameter:
- 28.03
- Tire Type:
- All Season
- Traction:
- A
- Tread Wear:
- 500
- Tread Depth:
- 9
- UQTG:
- 500AA
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