GT Radial Adventuro HT P255/55R20 107H - AS135

Looking for a 255/55R20 all season tire? The GT Radial Adventuro HT is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 255/55R20 means

In the size 255/55R20, 255 is the section width in millimeters (10.04 in), 55 is the aspect ratio — the sidewall stands 55% as tall as the tire is wide, or 140.2 mm (5.52 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 31.04 inches, turning roughly 650 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 107 — a maximum load of 2,150 lbs per tire. The speed symbol H corresponds to a maximum sustained speed of 130 mph.

Specifications

Frequently asked questions

What kind of tire is the GT Radial Adventuro HT?

The GT Radial Adventuro HT in 255/55R20 is a all season tire.

What are the treadwear and warranty ratings on the GT Radial Adventuro HT?

This tire carries a treadwear grade of 600, traction grade A, temperature grade B under UTQG. The manufacturer's warranty is 65K.

What does 107H mean on the GT Radial Adventuro HT?

107H breaks down as load index 107 — rated for 2,150 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.

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