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Pirelli
Pirelli PIR PZero Nero All Season P245/40R18
Pirelli PIR PZero Nero All Season P245/40R18
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Looking for a 245/40R18 high performance tire? The Pirelli PZero Nero All Season is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 245/40R18 means
In the size 245/40R18, 245 is the section width in millimeters (9.65 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 98.0 mm (3.86 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 25.72 inches, turning roughly 784 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 18 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 93 — a maximum load of 1,433 lbs per tire. The speed symbol V corresponds to a maximum sustained speed of 149 mph.
Specifications
| Size | P245/40R18 |
| Tire Type | High Performance |
| Service Description | 93V |
| Load Index | 93 |
| Speed Rating | V |
| Load Range | SL |
| Section Width (mm) | 245 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 18 |
| Tread Depth (/32") | 10 |
| Treadwear | 400 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 400AAA |
| Warranty | 45K |
Frequently asked questions
What kind of tire is the Pirelli PZero Nero All Season?
The Pirelli PZero Nero All Season in 245/40R18 is a high performance tire.
What are the treadwear and warranty ratings on the Pirelli PZero Nero All Season?
This tire carries a treadwear grade of 400, traction grade AA, temperature grade A under UTQG. The manufacturer's warranty is 45K.
What does 93V mean on the Pirelli PZero Nero All Season?
93V breaks down as load index 93 — rated for 1,433 lbs per tire — with a V speed rating, good for a maximum sustained 149 mph.
Keep shopping
Shop all 245/40R18 tires, see every Pirelli PZero Nero All Season size, or view all tires at ThreePiece.us.
- BRAND:
- Pirelli
- Model:
- PIR PZero Nero All Season
- Size:
- P245/40R18
- Aspect Ratio:
- 40
- Load Index:
- 93
- Load Range:
- SL
- Section Width:
- 245
- Service Description:
- 93V
- Speed Index:
- V
- Temperature:
- A
- Tire Rim Diameter:
- 18
- Tire Type:
- High Performance
- Traction:
- AA
- Tread Wear:
- 400
- Tread Depth:
- 10
- UQTG:
- 400AAA
- Warranty:
- 45K
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