GT Radial Maxtour LX 245/40R18XL 97V - 100UA3559

Looking for a 245/40R18 all season tire? The GT Radial Maxtour LX is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 245/40R18 means

In the size 245/40R18, 245 is the section width in millimeters (9.65 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 98.0 mm (3.86 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 25.72 inches, turning roughly 784 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 30.2 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.

Specifications

Frequently asked questions

What kind of tire is the GT Radial Maxtour LX?

The GT Radial Maxtour LX in 245/40R18 is a all season tire.

What are the treadwear and warranty ratings on the GT Radial Maxtour LX?

This tire carries a treadwear grade of 600, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 70K.

What does 97V mean on the GT Radial Maxtour LX?

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

Shop all 245/40R18 tires, browse GT Radial tires, see every GT Radial Maxtour LX size, or view all tires at ThreePiece.us.