Mastercraft MSC Courser Trail 275/60R20

The Mastercraft Courser Trail in 275/60R20 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 275/60R20 means

In the size 275/60R20, 275 is the section width in millimeters (10.83 in), 60 is the aspect ratio — the sidewall stands 60% as tall as the tire is wide, or 165.0 mm (6.50 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 32.99 inches, turning roughly 611 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 20 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 115 — a maximum load of 2,679 lbs per tire. The speed symbol T corresponds to a maximum sustained speed of 118 mph.

Specifications

Frequently asked questions

What does 115T mean on the Mastercraft Courser Trail?

115T breaks down as load index 115 — rated for 2,679 lbs per tire — with a T speed rating, good for a maximum sustained 118 mph.

What kind of tire is the Mastercraft Courser Trail?

The Mastercraft Courser Trail in 275/60R20 is a all terrain tire.

What are the treadwear and warranty ratings on the Mastercraft Courser Trail?

This tire carries a treadwear grade of 620, traction grade A, temperature grade B under UTQG. The manufacturer's warranty is 60K.

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