Toyo TOY Observe GSI-6 LS 275/50R20XL

The Toyo Observe GSI-6 LS in 275/50R20 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 275/50R20 means

In the size 275/50R20, 275 is the section width in millimeters (10.83 in), 50 is the aspect ratio — the sidewall stands 50% as tall as the tire is wide, or 137.5 mm (5.41 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 30.83 inches, turning roughly 654 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 113 — a maximum load of 2,535 lbs per tire. The speed symbol H corresponds to a maximum sustained speed of 130 mph.

Specifications

Frequently asked questions

What does 113H mean on the Toyo Observe GSI-6 LS?

113H breaks down as load index 113 — rated for 2,535 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.

What kind of tire is the Toyo Observe GSI-6 LS?

The Toyo Observe GSI-6 LS in 275/50R20 is a performance winter tire.

Will 275/50R20 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 275/50R20, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 275/50R20 tire in stock to compare options.

Keep shopping

Shop all 275/50R20 tires, see every Toyo Observe GSI-6 LS size, explore winter snow tires, or view all tires at ThreePiece.us.