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Cooper Tires
Cooper Tires COO Procontrol 275/55R20XL
Cooper Tires COO Procontrol 275/55R20XL
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The Cooper Tires Procontrol in 275/55R20 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 275/55R20 means
In the size 275/55R20, 275 is the section width in millimeters (10.83 in), 55 is the aspect ratio — the sidewall stands 55% as tall as the tire is wide, or 151.2 mm (5.95 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 31.91 inches, turning roughly 632 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 117 — a maximum load of 2,833 lbs per tire. The speed symbol H corresponds to a maximum sustained speed of 130 mph.
Specifications
| Size | 275/55R20XL |
| Tire Type | Performance |
| Service Description | 117H |
| Load Index | 11 |
| Speed Rating | H |
| Load Range | XL |
| Section Width (mm) | 275 |
| Aspect Ratio | 55 |
| Overall Diameter (in) | 31.89 |
| Tread Depth (/32") | 12 |
| Treadwear | 740 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 740AA |
| Warranty | 70K |
Frequently asked questions
What does 117H mean on the Cooper Tires Procontrol?
117H breaks down as load index 117 — rated for 2,833 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.
What kind of tire is the Cooper Tires Procontrol?
The Cooper Tires Procontrol in 275/55R20 is a performance tire.
What are the treadwear and warranty ratings on the Cooper Tires Procontrol?
This tire carries a treadwear grade of 740, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 70K.
Keep shopping
Shop all 275/55R20 tires, see every Cooper Tires Procontrol size, or view all tires at ThreePiece.us.
- Brand:
- Cooper Tires
- Model:
- COO Procontrol
- Size:
- 275/55R20XL
- Aspect Ratio:
- 55
- Load Index:
- 11
- Load Range:
- XL
- Section Width:
- 275
- Service Description:
- 117H
- Speed Index:
- H
- Temperature:
- A
- Tire Rim Diameter:
- 31.89
- Tire Type:
- Performance
- Traction:
- A
- Tread Wear:
- 740
- Tread Depth:
- 12
- UQTG:
- 740AA
- Warranty:
- 70K
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