Accelera Iota ST68 315/30R22

The Accelera Iota ST68 in 315/30R22 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 315/30R22 means

In the size 315/30R22, 315 is the section width in millimeters (12.40 in), 30 is the aspect ratio — the sidewall stands 30% as tall as the tire is wide, or 94.5 mm (3.72 in) — R denotes radial construction, and 22 is the wheel diameter in inches. That works out to an overall diameter of about 29.44 inches, turning roughly 685 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 109 — a maximum load of 2,271 lbs per tire. The speed symbol T corresponds to a maximum sustained speed of 118 mph.

Specifications

Frequently asked questions

What does 109T mean on the Accelera Iota ST68?

109T breaks down as load index 109 — rated for 2,271 lbs per tire — with a T speed rating, good for a maximum sustained 118 mph.

Will 315/30R22 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 315/30R22, 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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