About 345/25R21 tires
A 345/25R21 is 345 mm wide with a 86 mm sidewall (25 series) on a 21 inch wheel, 27.8 inches tall overall. A tire size only makes sense next to a wheel width and a car. 345/25R21 mounts on a range of widths, and the overall height decides whether the speedometer and the fender stay happy.
2 lines carry 345/25R21, from Michelin. By type that is 1 performance summer and 1 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 345/25R21 lines that do both.
Common questions
- What does 345/25R21 mean?
- 345 is the section width in millimeters, 25 is the sidewall height as a percent of that width (86 mm here), R means radial and 21 is the wheel diameter in inches. Overall the tire stands 27.8 inches tall.
- Will 345/25R21 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 345/25R21?
- The tire makers list 11.5 to 13 inch rim widths across the 345 mm sizes we carry, and each product page shows the range for that line. Pick a 21 inch wheel set and the tire step checks the width for you.
