Firestone Performer 70 TL R1W 420/70R24 130D - 379188

The Firestone Performer 70 TL R1W in 420/70R24 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 420/70R24 means

In the size 420/70R24, 420 is the section width in millimeters (16.54 in), 70 is the aspect ratio — the sidewall stands 70% as tall as the tire is wide, or 294.0 mm (11.57 in) — R denotes radial construction, and 24 is the wheel diameter in inches. That works out to an overall diameter of about 47.15 inches, turning roughly 428 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 48.8 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 130 — a maximum load of 4,189 lbs per tire.

Specifications

Frequently asked questions

What does 130D mean on the Firestone Performer 70 TL R1W?

130D breaks down as load index 130 — rated for 4,189 lbs per tire.

Will 420/70R24 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 420/70R24, 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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