Kumho KMH Ecsta PS31 215/50ZR17

The Kumho Ecsta PS31 in 215/50R17 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 215/50R17 means

In the size 215/50R17, 215 is the section width in millimeters (8.46 in), 50 is the aspect ratio — the sidewall stands 50% as tall as the tire is wide, or 107.5 mm (4.23 in) — R denotes radial construction, and 17 is the wheel diameter in inches. That works out to an overall diameter of about 25.46 inches, turning roughly 792 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 95 — a maximum load of 1,521 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.

Specifications

Frequently asked questions

What does 95W mean on the Kumho Ecsta PS31?

95W breaks down as load index 95 — rated for 1,521 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 215/50R17 is a high performance tire.

Will 215/50R17 tires fit my vehicle?

Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 215/50R17, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 215/50R17 tire in stock to compare options.

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