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Pirelli
Pirelli PIR Cinturato Weatheractive 225/45R18
Pirelli PIR Cinturato Weatheractive 225/45R18
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The Pirelli Cinturato Weatheractive in 225/45R18 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 225/45R18 means
In the size 225/45R18, 225 is the section width in millimeters (8.86 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 101.2 mm (3.99 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 25.97 inches, turning roughly 777 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 95 — a maximum load of 1,521 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 225/45R18 |
| Tire Type | Touring |
| Service Description | 95Y |
| Load Index | 95 |
| Speed Rating | Y |
| Load Range | XL |
| Section Width (mm) | 225 |
| Aspect Ratio | 45 |
| Overall Diameter (in) | 18 |
| Tread Depth (/32") | 12 |
| Treadwear | 700 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 700AA |
| Warranty | 60K |
Frequently asked questions
What does 95Y mean on the Pirelli Cinturato Weatheractive?
95Y breaks down as load index 95 — rated for 1,521 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.
What kind of tire is the Pirelli Cinturato Weatheractive?
The Pirelli Cinturato Weatheractive in 225/45R18 is a touring tire.
What are the treadwear and warranty ratings on the Pirelli Cinturato Weatheractive?
This tire carries a treadwear grade of 700, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 60K.
Keep shopping
Shop all 225/45R18 tires, see every Pirelli Cinturato Weatheractive size, or view all tires at ThreePiece.us.
- Brand:
- Pirelli
- Model:
- PIR Cinturato Weatheractive
- Size:
- 225/45R18
- Aspect Ratio:
- 45
- Load Index:
- 95
- Load Range:
- XL
- Section Width:
- 225
- Service Description:
- 95Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 18
- Tire Type:
- Touring
- Traction:
- A
- Tread Wear:
- 700
- Tread Depth:
- 12
- UQTG:
- 700AA
- Warranty:
- 60K
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