Toyo TOY Observe GSI-6 LS 285/70R17

Looking for a 285/70R17 performance winter tire? The Toyo Observe GSI-6 LS is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 285/70R17 means

In the size 285/70R17, 285 is the section width in millimeters (11.22 in), 70 is the aspect ratio — the sidewall stands 70% as tall as the tire is wide, or 199.5 mm (7.85 in) — R denotes radial construction, and 17 is the wheel diameter in inches. That works out to an overall diameter of about 32.71 inches, turning roughly 617 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 17 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 117 — a maximum load of 2,833 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 Toyo Observe GSI-6 LS?

The Toyo Observe GSI-6 LS in 285/70R17 is a performance winter tire.

Will 285/70R17 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 285/70R17, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 285/70R17 tire in stock to compare options.

What does 117H mean on the Toyo Observe GSI-6 LS?

117H breaks down as load index 117 — rated for 2,833 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.

Keep shopping

Shop all 285/70R17 tires, see every Toyo Observe GSI-6 LS size, explore winter snow tires, or view all tires at ThreePiece.us.