Atturo ATT Trail Blade Boss LT375/45R20/10

Looking for a 375/45R20 mud terrain tire? The Atturo Trail Blade Boss is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 375/45R20 means

In the size 375/45R20, 375 is the section width in millimeters (14.76 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 168.8 mm (6.64 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 33.29 inches, turning roughly 606 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 126 — a maximum load of 3,748 lbs per tire. The speed symbol Q corresponds to a maximum sustained speed of 99 mph.

Load Range E corresponds to a 10-ply rating.

Specifications

Frequently asked questions

What kind of tire is the Atturo Trail Blade Boss?

The Atturo Trail Blade Boss in 375/45R20 is a mud terrain tire.

Will 375/45R20 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 375/45R20, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right.

What does 126Q mean on the Atturo Trail Blade Boss?

126Q breaks down as load index 126 — rated for 3,748 lbs per tire — with a Q speed rating, good for a maximum sustained 99 mph.

Keep shopping

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