Continental ProContact RX 235/40R18 98(Y) - 15499490000

The Continental ProContact RX in 235/40R18 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 235/40R18 means

In the size 235/40R18, 235 is the section width in millimeters (9.25 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 94.0 mm (3.70 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 25.40 inches, turning roughly 794 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.

Specifications

Frequently asked questions

What does 98(Y) mean on the Continental ProContact RX?

98(Y) 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 Continental ProContact RX?

The Continental ProContact RX in 235/40R18 is a all season tire.

Will 235/40R18 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 235/40R18, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 235/40R18 tire in stock to compare options.

Keep shopping

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