Dunlop Winter Maxx SJ8 255/50R20XL 109R - 10037772

Looking for a 255/50R20 winter tire? The Dunlop Winter Maxx SJ8 is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 255/50R20 means

In the size 255/50R20, 255 is the section width in millimeters (10.04 in), 50 is the aspect ratio — the sidewall stands 50% as tall as the tire is wide, or 127.5 mm (5.02 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 30.04 inches, turning roughly 671 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 service description on this tire decodes to a load index of 109 — a maximum load of 2,271 lbs per tire. The speed symbol R corresponds to a maximum sustained speed of 106 mph.

Specifications

Frequently asked questions

What kind of tire is the Dunlop Winter Maxx SJ8?

The Dunlop Winter Maxx SJ8 in 255/50R20 is a winter tire.

Will 255/50R20 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 255/50R20, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 255/50R20 tire in stock to compare options.

What does 109R mean on the Dunlop Winter Maxx SJ8?

109R breaks down as load index 109 — rated for 2,271 lbs per tire — with an R speed rating, good for a maximum sustained 106 mph.

Keep shopping

Shop all 255/50R20 tires, browse Dunlop tires, see every Dunlop Winter Maxx SJ8 size, explore winter snow tires, or view all tires at ThreePiece.us.