RBP Repulsor RBP Repulsor R/T 305/50R20

The RBP Repulsor Repulsor R/T in 305/50R20 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 305/50R20 means

In the size 305/50R20, 305 is the section width in millimeters (12.01 in), 50 is the aspect ratio — the sidewall stands 50% as tall as the tire is wide, or 152.5 mm (6.00 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 32.01 inches, turning roughly 630 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 20 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 125 — a maximum load of 3,638 lbs per tire, or 122 (3,307 lbs) per tire when mounted as duals. The speed symbol Q corresponds to a maximum sustained speed of 99 mph.

Specifications

Frequently asked questions

What does 125/122Q mean on the RBP Repulsor Repulsor R/T?

125/122Q breaks down as load index 125 — rated for 3,638 lbs per tire (122, or 3,307 lbs, in dual fitment) — with a Q speed rating, good for a maximum sustained 99 mph.

Will 305/50R20 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 305/50R20, 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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