Best 345/25 R21 Tires. Rims & Conversion Info

345/25 R21 in inches What rims fit 345/25 R21 tires What is 345/25 R21?

Best 345/25 R21 Summer Tires

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Michelin Pilot Sport 4S ZP
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Best 345/25 R21 Summer Tires

345/25 R21 in inches

345/25 R21 tires' overall diameter is 27.8 inches, tire width is 13.6 inches, the tire can be mounted on 21 inches wheel and the circumference is 87.3". With that parameters, we can calculate that it will take approximately 725.8 revolutions per mile.

345/25 R21 – what does it mean?

Parameter Meaning
345 The first number shows that the tire has a section width of 345 mm or approximately 13.6 inches.
25 The second number is the aspect ratio or sidewall height. In this case, it is 25%. It shows the height of the tire from the ground to the rim edge or the height of the tire's cross-section which is 25% of the width or ~ 87mm
R21 The letter R means this tire is radial. Most of all tires nowadays are radial. The number is the tire diameter in inches. It means that the tire will fit 21-inch wheels

If you want to know more about how to decipher information inscribed on your tires, including aspects such as the tire height, tire width, and the diameter of the wheel, this guide provides an in-depth look at how to read a tire sidewall. These measurements can reveal a wealth of information about your tire's specifications and suitability for your vehicle. Mastering these details will allow you to make informed decisions when buying or replacing your tires.