Carlisle Sport Trail LH ST185/80D13/8 99N - 6H02231

The Carlisle Sport Trail LH in 185/80R13 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 185/80R13 means

In the size 185/80R13, 185 is the section width in millimeters (7.28 in), 80 is the aspect ratio — the sidewall stands 80% as tall as the tire is wide, or 148.0 mm (5.83 in) — R denotes radial construction, and 13 is the wheel diameter in inches. That works out to an overall diameter of about 24.65 inches, turning roughly 818 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 24 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 99 — a maximum load of 1,709 lbs per tire. The speed symbol N corresponds to a maximum sustained speed of 87 mph.

Specifications

Frequently asked questions

What does 99N mean on the Carlisle Sport Trail LH?

99N breaks down as load index 99 — rated for 1,709 lbs per tire — with an N speed rating, good for a maximum sustained 87 mph.

Will 185/80R13 tires fit my vehicle?

Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 185/80R13, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right.

How fast does this tire ship?

Every order at ThreePiece.us ships free, with fast delivery from a nationwide warehouse network. Affirm financing is available at checkout.

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