Hercules H-901 ST ST225/75R15/12 121/118L - 95135

Looking for a 225/75R15 tire? The Hercules H-901 ST is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 225/75R15 means

In the size 225/75R15, 225 is the section width in millimeters (8.86 in), 75 is the aspect ratio — the sidewall stands 75% as tall as the tire is wide, or 168.8 mm (6.64 in) — R denotes radial construction, and 15 is the wheel diameter in inches. That works out to an overall diameter of about 28.29 inches, turning roughly 713 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 service description on this tire decodes to a load index of 121 — a maximum load of 3,197 lbs per tire, or 118 (2,910 lbs) per tire when mounted as duals. The speed symbol L corresponds to a maximum sustained speed of 75 mph.

Specifications

Frequently asked questions

Will 225/75R15 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 225/75R15, 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.

What does 121/118L mean on the Hercules H-901 ST?

121/118L breaks down as load index 121 — rated for 3,197 lbs per tire (118, or 2,910 lbs, in dual fitment) — with an L speed rating, good for a maximum sustained 75 mph.

Keep shopping

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