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Cooper
Cooper CS5 Ultra Touring 235/45R18 94W - 166060002
Cooper CS5 Ultra Touring 235/45R18 94W - 166060002
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The Cooper CS5 Ultra Touring in 235/45R18 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 235/45R18 means
In the size 235/45R18, 235 is the section width in millimeters (9.25 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 105.8 mm (4.16 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 26.33 inches, turning roughly 766 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 94 — a maximum load of 1,477 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 235/45R18 |
| Tire Type | All Season |
| Service Description | 94W |
| Load Index | 94 |
| Speed Rating | W |
| Load Range | SL |
| Section Width (mm) | 235 |
| Aspect Ratio | 45 |
| Overall Diameter (in) | 26.34 |
| Tread Depth (/32") | 11 |
| Treadwear | 500 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 500AA |
| Warranty | 50K |
Frequently asked questions
What does 94W mean on the Cooper CS5 Ultra Touring?
94W breaks down as load index 94 — rated for 1,477 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
What kind of tire is the Cooper CS5 Ultra Touring?
The Cooper CS5 Ultra Touring in 235/45R18 is a all season tire.
What are the treadwear and warranty ratings on the Cooper 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.
Keep shopping
Shop all 235/45R18 tires, browse Cooper tires, see every Cooper CS5 Ultra Touring size, or view all tires at ThreePiece.us.
- BRAND:
- Cooper
- Model:
- CS5 Ultra Touring
- Size:
- 235/45R18
- Aspect Ratio:
- 45
- Load Index:
- 94
- Load Range:
- SL
- Section Width:
- 235
- Service Description:
- 94W
- Speed Index:
- W
- Temperature:
- A
- Tire Rim Diameter:
- 26.34
- Tire Type:
- All Season
- Traction:
- A
- Tread Wear:
- 500
- Tread Depth:
- 11
- UQTG:
- 500AA
- Warranty:
- 50K
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