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Cooper
Cooper CS5 Ultra Touring 255/50R20XL 109V - 166069002
Cooper CS5 Ultra Touring 255/50R20XL 109V - 166069002
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Shop the Cooper CS5 Ultra Touring 255/50R20 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 255/50R20 means
In the size 255/50R20, 255 is the section width in millimeters (10.04 in), 50 is the aspect ratio — the sidewall stands 50% as tall as the tire is wide, or 127.5 mm (5.02 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 30.04 inches, turning roughly 671 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 109 — a maximum load of 2,271 lbs per tire. The speed symbol V corresponds to a maximum sustained speed of 149 mph.
Specifications
| Size | 255/50R20XL |
| Tire Type | All Season |
| Service Description | 109V |
| Load Index | 109 |
| Speed Rating | V |
| Load Range | XL |
| Section Width (mm) | 255 |
| Aspect Ratio | 50 |
| Overall Diameter (in) | 30.08 |
| Tread Depth (/32") | 11 |
| Treadwear | 640 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 640AA |
| Warranty | 70K |
Frequently asked questions
What are the treadwear and warranty ratings on the Cooper CS5 Ultra Touring?
This tire carries a treadwear grade of 640, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 70K.
What does 109V mean on the Cooper CS5 Ultra Touring?
109V breaks down as load index 109 — rated for 2,271 lbs per tire — with a V speed rating, good for a maximum sustained 149 mph.
What kind of tire is the Cooper CS5 Ultra Touring?
The Cooper CS5 Ultra Touring in 255/50R20 is a all season tire.
Keep shopping
Shop all 255/50R20 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:
- 255/50R20XL
- Aspect Ratio:
- 50
- Load Index:
- 109
- Load Range:
- XL
- Section Width:
- 255
- Service Description:
- 109V
- Speed Index:
- V
- Temperature:
- A
- Tire Rim Diameter:
- 30.08
- Tire Type:
- All Season
- Traction:
- A
- Tread Wear:
- 640
- Tread Depth:
- 11
- UQTG:
- 640AA
- Warranty:
- 70K
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