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Michelin
Michelin Primacy 3 225/45R18XL 95Y - 02661
Michelin Primacy 3 225/45R18XL 95Y - 02661
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Shop the Michelin Primacy 3 225/45R18 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
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 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.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | 225/45R18XL |
| Tire Type | Summer |
| Service Description | 95Y |
| Load Index | 95 |
| Speed Rating | Y |
| Load Range | Extra Load |
| Section Width (mm) | 225 |
| Aspect Ratio | 45 |
| Overall Diameter (in) | 25.94 |
| Tread Depth (/32") | 9 |
| Treadwear | 240 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 240AA |
| Warranty | 30K |
Frequently asked questions
What are the treadwear and warranty ratings on the Michelin Primacy 3?
This tire carries a treadwear grade of 240, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 30K.
What does 95Y mean on the Michelin Primacy 3?
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 Michelin Primacy 3?
The Michelin Primacy 3 in 225/45R18 is a summer tire.
Keep shopping
Shop all 225/45R18 tires, browse Michelin tires, see every Michelin Primacy 3 size, or view all tires at ThreePiece.us.
- BRAND:
- Michelin
- Model:
- Primacy 3
- Size:
- 225/45R18XL
- Aspect Ratio:
- 45
- Load Index:
- 95
- Load Range:
- Extra Load
- Section Width:
- 225
- Service Description:
- 95Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 25.94
- Tire Type:
- Summer
- Traction:
- A
- Tread Wear:
- 240
- Tread Depth:
- 9
- UQTG:
- 240AA
- Warranty:
- 30K
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