Yokohama YOK TY303A 215/75R17.5

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What 215/75R17.5 means

In the size 215/75R17.5, 215 is the section width in millimeters (8.46 in), 75 is the aspect ratio — the sidewall stands 75% as tall as the tire is wide, or 161.2 mm (6.35 in) — R denotes radial construction, and 17.5 is the wheel diameter in inches. That works out to an overall diameter of about 30.20 inches, turning roughly 668 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 17.5 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 126 — a maximum load of 3,748 lbs per tire, or 124 (3,527 lbs) per tire when mounted as duals. The speed symbol M corresponds to a maximum sustained speed of 81 mph.

Load Range G corresponds to a 14-ply rating.

Specifications

Frequently asked questions

Will 215/75R17.5 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 215/75R17.5, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right.

What does 126/124M mean on the Yokohama TY303A?

126/124M breaks down as load index 126 — rated for 3,748 lbs per tire (124, or 3,527 lbs, in dual fitment) — with an M speed rating, good for a maximum sustained 81 mph.

What kind of tire is the Yokohama TY303A?

The Yokohama TY303A in 215/75R17.5 is a highway tire.

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