Roadmaster RM272 245/70R17.50

Shop the Roadmaster RM272 245/70R17 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.

What 245/70R17 means

In the size 245/70R17, 245 is the section width in millimeters (9.65 in), 70 is the aspect ratio — the sidewall stands 70% as tall as the tire is wide, or 171.5 mm (6.75 in) — R denotes radial construction, and 17 is the wheel diameter in inches. That works out to an overall diameter of about 30.50 inches, turning roughly 661 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 143 — a maximum load of 6,008 lbs per tire. The speed symbol K corresponds to a maximum sustained speed of 68 mph.

Specifications

Frequently asked questions

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 143K mean on the Roadmaster RM272?

143K breaks down as load index 143 — rated for 6,008 lbs per tire — with a K speed rating, good for a maximum sustained 68 mph.

Will 245/70R17 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 245/70R17, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 245/70R17 tire in stock to compare options.

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