What does 255/40R17 mean?

255 is the section width in millimeters, 40 is the sidewall height as a percent of that width (102 mm here), R means radial and 17 is the wheel diameter in inches. Overall the tire stands 25 inches tall.

Will 255/40R17 fit your car?

Pick your year, make and model and the tires page answers it for yours. The wheel width has to carry the section width and the overall height has to stay near where the car started.

What wheel width fits 255/40R17?

The tire makers list 6.5 to 11 inch rim widths across the 255 mm sizes we carry, and each product page shows the range for that line. Pick a 17 inch wheel set and the tire step checks the width for you.

255/40R17 tires

15 tire lines. 255/40R17 tires sized to your wheels and your car.

About 255/40R17 tires

A 255/40R17 is 255 mm wide with a 102 mm sidewall (40 series) on a 17 inch wheel, 25 inches tall overall. A tire size only makes sense next to a wheel width and a car. 255/40R17 mounts on a range of widths, and the overall height decides whether the speedometer and the fender stay happy.

15 lines carry 255/40R17, from 8 brands (Nitto, Falken, Continental Tire, Yokohama and 4 more). By type that is 9 performance summer and 5 all season. The tire has to stay near your car's stock height and mount on your wheel width, so pick the car and the wheel set and the page keeps only the 255/40R17 lines that do both.

Common questions

What does 255/40R17 mean?: 255 is the section width in millimeters, 40 is the sidewall height as a percent of that width (102 mm here), R means radial and 17 is the wheel diameter in inches. Overall the tire stands 25 inches tall.
Will 255/40R17 fit your car?: Pick your year, make and model and the tires page answers it for yours. The wheel width has to carry the section width and the overall height has to stay near where the car started.
What wheel width fits 255/40R17?: The tire makers list 6.5 to 11 inch rim widths across the 255 mm sizes we carry, and each product page shows the range for that line. Pick a 17 inch wheel set and the tire step checks the width for you.