Kumho Ecsta Sport PS72 235/45R18XL 98Y - 2363413

The Kumho Ecsta Sport PS72 in 235/45R18 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 235/45R18 means

In the size 235/45R18, 235 is the section width in millimeters (9.25 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 105.8 mm (4.16 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 26.33 inches, turning roughly 766 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 98 — a maximum load of 1,653 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.

Load Range E corresponds to a 10-ply rating.

Specifications

Frequently asked questions

What does 98Y mean on the Kumho Ecsta Sport PS72?

98Y breaks down as load index 98 — rated for 1,653 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.

What kind of tire is the Kumho Ecsta Sport PS72?

The Kumho Ecsta Sport PS72 in 235/45R18 is a summer tire.

What are the treadwear and warranty ratings on the Kumho Ecsta Sport PS72?

This tire carries a treadwear grade of 320, traction grade AA, temperature grade A under UTQG. The manufacturer's warranty is 30K.

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