Nexen NEX N'Priz AH8 225/40R18/4

Looking for a 225/40R18 touring tire? The Nexen N'Priz AH8 is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 225/40R18 means

In the size 225/40R18, 225 is the section width in millimeters (8.86 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 90.0 mm (3.54 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 25.09 inches, turning roughly 804 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 manufacturer lists the overall diameter of this specific tire as 18 inches — when clearance is tight, go by the published figure rather than the nominal size math.

The service description on this tire decodes to a load index of 88 — a maximum load of 1,235 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.

Specifications

Frequently asked questions

What kind of tire is the Nexen N'Priz AH8?

The Nexen N'Priz AH8 in 225/40R18 is a touring tire.

What are the treadwear and warranty ratings on the Nexen N'Priz AH8?

This tire carries a treadwear grade of 500, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 70K.

What does 88W mean on the Nexen N'Priz AH8?

88W breaks down as load index 88 — rated for 1,235 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.

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