Samson AR1200 R-1W 380/85R30 135D - VAR1200552

The Samson AR1200 R-1W in 380/85R30 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 380/85R30 means

In the size 380/85R30, 380 is the section width in millimeters (14.96 in), 85 is the aspect ratio — the sidewall stands 85% as tall as the tire is wide, or 323.0 mm (12.72 in) — R denotes radial construction, and 30 is the wheel diameter in inches. That works out to an overall diameter of about 55.43 inches, turning roughly 364 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 135 — a maximum load of 4,806 lbs per tire.

Specifications

Frequently asked questions

What does 135D mean on the Samson AR1200 R-1W?

135D breaks down as load index 135 — rated for 4,806 lbs per tire.

Will 380/85R30 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 380/85R30, 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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