Frequently Asked Questions
The first number, 265, represents the tire width in millimeters. The second number, 45, indicates the aspect ratio, which is the height of the sidewall expressed as a percentage of the tire's width. The letter "R" stands for radial construction, which is the most common type of tire construction. Lastly, 21 indicates the diameter of the wheel.
265/45R21 tires are commonly found on SUVs, crossovers, and luxury vehicles. It includes the following large vehicles like the Audi Q7, BMW X5, Mercedes-Benz GLE-Class, and Porsche Cayenne.
These tires typically offer better handling and stability, especially during cornering, due to their wider footprint and lower profile. They also often provide a sportier look to the vehicle.
You should check your tires for wear regularly — look out for any uneven tread erosion, cracking or bulging in the rubber and damage. And if your tires are more than six years old (no matter the tread remaining), you should replace them due to rubber aging.
Discounted Wheel Warehouse has everything you need. Our store’s wide selection provides a variety of high-quality 265/45R21 tires at the most reasonable prices. Furthermore, our rapid delivery, reasonable costs and financing options will meet your demands.