GT Radial Adventuro RT LT295/65R20/10 129/126S - 100UA3850

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What 295/65R20 means

In the size 295/65R20, 295 is the section width in millimeters (11.61 in), 65 is the aspect ratio — the sidewall stands 65% as tall as the tire is wide, or 191.8 mm (7.55 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 35.10 inches, turning roughly 575 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 35.4 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 129 — a maximum load of 4,079 lbs per tire, or 126 (3,748 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 GT Radial Adventuro RT carry?

The manufacturer's warranty on this tire is 45K.

What does 129/126S mean on the GT Radial Adventuro RT?

129/126S breaks down as load index 129 — rated for 4,079 lbs per tire (126, or 3,748 lbs, in dual fitment) — with an S speed rating, good for a maximum sustained 112 mph.

What kind of tire is the GT Radial Adventuro RT?

The GT Radial Adventuro RT in 295/65R20 is a all season tire.

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