Pirelli PIR W270 SottoZero Series II 235/45R20XL

Shop the Pirelli W270 SottoZero Series II 235/45R20 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.

What 235/45R20 means

In the size 235/45R20, 235 is the section width in millimeters (9.25 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 105.8 mm (4.16 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 28.33 inches, turning roughly 712 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 100 — a maximum load of 1,764 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.

Specifications

Frequently asked questions

Will 235/45R20 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 235/45R20, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right.

What does 100W mean on the Pirelli W270 SottoZero Series II?

100W breaks down as load index 100 — rated for 1,764 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.

What kind of tire is the Pirelli W270 SottoZero Series II?

The Pirelli W270 SottoZero Series II in 235/45R20 is a high performance tire.

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