Hercules Avalanche TT LT235/80R17/10 120/117Q - 01772

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What 235/80R17 means

In the size 235/80R17, 235 is the section width in millimeters (9.25 in), 80 is the aspect ratio — the sidewall stands 80% as tall as the tire is wide, or 188.0 mm (7.40 in) — R denotes radial construction, and 17 is the wheel diameter in inches. That works out to an overall diameter of about 31.80 inches, turning roughly 634 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 31.97 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 120 — a maximum load of 3,086 lbs per tire, or 117 (2,833 lbs) per tire when mounted as duals. The speed symbol Q corresponds to a maximum sustained speed of 99 mph.

Specifications

Frequently asked questions

Will 235/80R17 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 235/80R17, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 235/80R17 tire in stock to compare options.

What does 120/117Q mean on the Hercules Avalanche TT?

120/117Q breaks down as load index 120 — rated for 3,086 lbs per tire (117, or 2,833 lbs, in dual fitment) — with a Q speed rating, good for a maximum sustained 99 mph.

What kind of tire is the Hercules Avalanche TT?

The Hercules Avalanche TT in 235/80R17 is a winter tire.

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