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Kumho
Kumho KMH Ecsta PS31 215/45ZR18XL
Kumho KMH Ecsta PS31 215/45ZR18XL
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Shop the Kumho Ecsta PS31 215/45R18 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 215/45R18 means
In the size 215/45R18, 215 is the section width in millimeters (8.46 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 96.8 mm (3.81 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 25.62 inches, turning roughly 787 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 93 — a maximum load of 1,433 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 215/45ZR18XL |
| Tire Type | High Performance |
| Service Description | 93W |
| Load Index | 93 |
| Speed Rating | W |
| Load Range | XL |
| Section Width (mm) | 215 |
| Aspect Ratio | 45 |
| Overall Diameter (in) | 25.6 |
| Tread Depth (/32") | 10 |
| Treadwear | 460 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 460AA |
Frequently asked questions
What are the treadwear and warranty ratings on the Kumho Ecsta PS31?
This tire carries a treadwear grade of 460, traction grade A, temperature grade A under UTQG.
What does 93W mean on the Kumho Ecsta PS31?
93W breaks down as load index 93 — rated for 1,433 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
What kind of tire is the Kumho Ecsta PS31?
The Kumho Ecsta PS31 in 215/45R18 is a high performance tire.
Keep shopping
Shop all 215/45R18 tires, see every Kumho Ecsta PS31 size, or view all tires at ThreePiece.us.
- Brand:
- Kumho
- Model:
- KMH Ecsta PS31
- Size:
- 215/45ZR18XL
- Aspect Ratio:
- 45
- Load Index:
- 93
- Load Range:
- XL
- Section Width:
- 215
- Service Description:
- 93W
- Speed Index:
- W
- Temperature:
- A
- Tire Rim Diameter:
- 25.6
- Tire Type:
- High Performance
- Traction:
- A
- Tread Wear:
- 460
- Tread Depth:
- 10
- UQTG:
- 460AA
- Warranty:
- N/A
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