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Cooper
Cooper ProControl 235/55R17 99W - 166424021
Cooper ProControl 235/55R17 99W - 166424021
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Looking for a 235/55R17 all season tire? The Cooper ProControl is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 235/55R17 means
In the size 235/55R17, 235 is the section width in millimeters (9.25 in), 55 is the aspect ratio — the sidewall stands 55% as tall as the tire is wide, or 129.2 mm (5.09 in) — R denotes radial construction, and 17 is the wheel diameter in inches. That works out to an overall diameter of about 27.18 inches, turning roughly 742 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 99 — a maximum load of 1,709 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 235/55R17 |
| Tire Type | All Season |
| Service Description | 99W |
| Load Index | 99 |
| Speed Rating | W |
| Load Range | Standard Load |
| Section Width (mm) | 235 |
| Aspect Ratio | 55 |
| Overall Diameter (in) | 27.17 |
| Tread Depth (/32") | 10 |
| Warranty | 60K |
Frequently asked questions
What kind of tire is the Cooper ProControl?
The Cooper ProControl in 235/55R17 is a all season tire.
What warranty does the Cooper ProControl carry?
The manufacturer's warranty on this tire is 60K.
What does 99W mean on the Cooper ProControl?
99W breaks down as load index 99 — rated for 1,709 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
Keep shopping
Shop all 235/55R17 tires, browse Cooper tires, see every Cooper ProControl size, or view all tires at ThreePiece.us.
- BRAND:
- Cooper
- Model:
- ProControl
- Size:
- 235/55R17
- Aspect Ratio:
- 55
- Load Index:
- 99
- Load Range:
- Standard Load
- Section Width:
- 235
- Service Description:
- 99W
- Speed Index:
- W
- Tire Rim Diameter:
- 27.17
- Tire Type:
- All Season
- Tread Depth:
- 10
- Warranty:
- 60K
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