Mastercraft Courser Quest Plus 235/60R18XL 107V - 167178007

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What 235/60R18 means

In the size 235/60R18, 235 is the section width in millimeters (9.25 in), 60 is the aspect ratio — the sidewall stands 60% as tall as the tire is wide, or 141.0 mm (5.55 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 29.10 inches, turning roughly 693 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 29.29 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 107 — a maximum load of 2,150 lbs per tire. The speed symbol V corresponds to a maximum sustained speed of 149 mph.

Load Range E corresponds to a 10-ply rating.

Specifications

Frequently asked questions

What warranty does the Mastercraft Courser Quest Plus carry?

The manufacturer's warranty on this tire is 65K.

What does 107V mean on the Mastercraft Courser Quest Plus?

107V breaks down as load index 107 — rated for 2,150 lbs per tire — with a V speed rating, good for a maximum sustained 149 mph.

What kind of tire is the Mastercraft Courser Quest Plus?

The Mastercraft Courser Quest Plus in 235/60R18 is a all season tire.

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