Falken Ziex CT60A A/S 275/45R21 107W - 59000960

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What 275/45R21 means

In the size 275/45R21, 275 is the section width in millimeters (10.83 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 123.8 mm (4.87 in) — R denotes radial construction, and 21 is the wheel diameter in inches. That works out to an overall diameter of about 30.74 inches, turning roughly 656 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 30.9 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 107 — a maximum load of 2,150 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.

Specifications

Frequently asked questions

Will 275/45R21 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 275/45R21, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 275/45R21 tire in stock to compare options.

What does 107W mean on the Falken Ziex CT60A A/S?

107W breaks down as load index 107 — rated for 2,150 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.

What kind of tire is the Falken Ziex CT60A A/S?

The Falken Ziex CT60A A/S in 275/45R21 is a all season tire.

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