Hankook Dynapro AT2 Xtreme RF12 LT325/60R18/10 124/121S - 2021655

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What 325/60R18 means

In the size 325/60R18, 325 is the section width in millimeters (12.80 in), 60 is the aspect ratio — the sidewall stands 60% as tall as the tire is wide, or 195.0 mm (7.68 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 33.35 inches, turning roughly 605 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 124 — a maximum load of 3,527 lbs per tire, or 121 (3,197 lbs) per tire when mounted as duals. The speed symbol S corresponds to a maximum sustained speed of 112 mph.

Load Range E corresponds to a 10-ply rating.

Specifications

Frequently asked questions

What warranty does the Hankook Dynapro AT2 Xtreme RF12 carry?

The manufacturer's warranty on this tire is 60K.

What does 124/121S mean on the Hankook Dynapro AT2 Xtreme RF12?

124/121S breaks down as load index 124 — rated for 3,527 lbs per tire (121, or 3,197 lbs, in dual fitment) — with an S speed rating, good for a maximum sustained 112 mph.

What kind of tire is the Hankook Dynapro AT2 Xtreme RF12?

The Hankook Dynapro AT2 Xtreme RF12 in 325/60R18 is a all season tire.

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