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Cooper
Cooper Evolution Tour 235/55R17 99T - 166334005
Cooper Evolution Tour 235/55R17 99T - 166334005
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Shop the Cooper Evolution Tour 235/55R17 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
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 manufacturer lists the overall diameter of this specific tire as 28.5 inches — when clearance is tight, go by the published figure rather than the nominal size math.
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 T corresponds to a maximum sustained speed of 118 mph.
Specifications
| Size | 235/55R17 |
| Tire Type | All Season |
| Service Description | 99T |
| Load Index | 99 |
| Speed Rating | T |
| Load Range | Standard Load |
| Section Width (mm) | 235 |
| Aspect Ratio | 55 |
| Overall Diameter (in) | 28.5 |
| Tread Depth (/32") | 9.5 |
| Treadwear | 600 |
| Traction Grade | A |
| Temperature Grade | B |
| UTQG | 600AB |
| Warranty | 65K |
Frequently asked questions
What are the treadwear and warranty ratings on the Cooper Evolution Tour?
This tire carries a treadwear grade of 600, traction grade A, temperature grade B under UTQG. The manufacturer's warranty is 65K.
What does 99T mean on the Cooper Evolution Tour?
99T breaks down as load index 99 — rated for 1,709 lbs per tire — with a T speed rating, good for a maximum sustained 118 mph.
What kind of tire is the Cooper Evolution Tour?
The Cooper Evolution Tour in 235/55R17 is a all season tire.
Keep shopping
Shop all 235/55R17 tires, browse Cooper tires, see every Cooper Evolution Tour size, or view all tires at ThreePiece.us.
- BRAND:
- Cooper
- Model:
- Evolution Tour
- Size:
- 235/55R17
- Aspect Ratio:
- 55
- Load Index:
- 99
- Load Range:
- Standard Load
- Section Width:
- 235
- Service Description:
- 99T
- Speed Index:
- T
- Temperature:
- B
- Tire Rim Diameter:
- 28.5
- Tire Type:
- All Season
- Traction:
- A
- Tread Wear:
- 600
- Tread Depth:
- 9.5
- UQTG:
- 600AB
- Warranty:
- 65K
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