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Cooper Tires
Cooper Tires COO CS5 Ultra Touring 225/45R18XL 95W
Cooper Tires COO CS5 Ultra Touring 225/45R18XL 95W
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Shop the Cooper Tires CS5 Ultra Touring 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 W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 225/45R18XL |
| Tire Type | Touring |
| Service Description | 95W |
| Load Index | 95 |
| Speed Rating | W |
| Load Range | XL |
| Section Width (mm) | 225 |
| Aspect Ratio | 45 |
| Overall Diameter (in) | 25.94 |
| Tread Depth (/32") | 11 |
| Treadwear | 500 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 500AA |
| Warranty | 50K |
Frequently asked questions
What are the treadwear and warranty ratings on the Cooper Tires CS5 Ultra Touring?
This tire carries a treadwear grade of 500, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 50K.
What does 95W mean on the Cooper Tires CS5 Ultra Touring?
95W breaks down as load index 95 — rated for 1,521 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
What kind of tire is the Cooper Tires CS5 Ultra Touring?
The Cooper Tires CS5 Ultra Touring in 225/45R18 is a touring tire.
Keep shopping
Shop all 225/45R18 tires, see every Cooper Tires CS5 Ultra Touring size, or view all tires at ThreePiece.us.
- BRAND:
- Cooper Tires
- Model:
- COO CS5 Ultra Touring
- Size:
- 225/45R18XL
- Aspect Ratio:
- 45
- Load Index:
- 95
- Load Range:
- XL
- Section Width:
- 225
- Service Description:
- 95W
- Speed Index:
- W
- Temperature:
- A
- Tire Rim Diameter:
- 25.94
- Tire Type:
- Touring
- Traction:
- A
- Tread Wear:
- 500
- Tread Depth:
- 11
- UQTG:
- 500AA
- Warranty:
- 50K
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