Nexen NEX Roadian GTX 235/50R18

Looking for a 235/50R18 touring tire? The Nexen Roadian GTX is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 235/50R18 means

In the size 235/50R18, 235 is the section width in millimeters (9.25 in), 50 is the aspect ratio — the sidewall stands 50% as tall as the tire is wide, or 117.5 mm (4.63 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 27.25 inches, turning roughly 740 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 97 — a maximum load of 1,609 lbs per tire. The speed symbol V corresponds to a maximum sustained speed of 149 mph.

Load Range B corresponds to a 4-ply rating.

Specifications

Frequently asked questions

What kind of tire is the Nexen Roadian GTX?

The Nexen Roadian GTX in 235/50R18 is a touring tire.

What are the treadwear and warranty ratings on the Nexen Roadian GTX?

This tire carries a treadwear grade of 680, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 70K.

What does 97V mean on the Nexen Roadian GTX?

97V breaks down as load index 97 — rated for 1,609 lbs per tire — with a V speed rating, good for a maximum sustained 149 mph.

Keep shopping

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