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Kumho
Kumho KMH Ecsta PA51 255/40R17
Kumho KMH Ecsta PA51 255/40R17
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Looking for a 255/40R17 high performance tire? The Kumho Ecsta PA51 is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 255/40R17 means
In the size 255/40R17, 255 is the section width in millimeters (10.04 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 102.0 mm (4.02 in) — R denotes radial construction, and 17 is the wheel diameter in inches. That works out to an overall diameter of about 25.03 inches, turning roughly 806 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 | 255/40R17 |
| Tire Type | High Performance |
| Service Description | 94W |
| Load Index | 94 |
| Speed Rating | W |
| Load Range | SL |
| Section Width (mm) | 255 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 25 |
| Tread Depth (/32") | 11 |
| Treadwear | 500 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 500AAA |
| Warranty | 45K |
Frequently asked questions
What kind of tire is the Kumho Ecsta PA51?
The Kumho Ecsta PA51 in 255/40R17 is a high performance tire.
What are the treadwear and warranty ratings on the Kumho Ecsta PA51?
This tire carries a treadwear grade of 500, traction grade AA, temperature grade A under UTQG. The manufacturer's warranty is 45K.
What does 94W mean on the Kumho Ecsta PA51?
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.
Keep shopping
See every Kumho Ecsta PA51 size, or view all tires at ThreePiece.us.
- BRAND:
- Kumho
- Model:
- KMH Ecsta PA51
- Size:
- 255/40R17
- Aspect Ratio:
- 40
- Load Index:
- 94
- Load Range:
- SL
- Section Width:
- 255
- Service Description:
- 94W
- Speed Index:
- W
- Temperature:
- A
- Tire Rim Diameter:
- 25
- Tire Type:
- High Performance
- Traction:
- AA
- Tread Wear:
- 500
- Tread Depth:
- 11
- UQTG:
- 500AAA
- Warranty:
- 45K
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