What does the 245/45R20 size mean?

245 is the tread width in millimeters, 45 is the sidewall height as a percentage of that width, and R20 means it fits a 20-inch wheel. It suits larger sedans and crossovers that specify this size.

How long is the treadwear warranty?

It depends on the speed rating: 65,000 miles for S and T, 55,000 for H, 45,000 for V and 40,000 for W. Check the speed rating on the sidewall of the tire you buy.

Is it a good winter tire?

It is an all-season tire, so it handles light snow and cold weather but is not a substitute for a dedicated winter tire in heavy snow or ice.

Does this size have ContiSilent or rim protection?

Those features are offered on select sizes only, so confirm on the specific tire's sidewall markings before buying. The FR marking means a rim protection ring.

How does it compare with a sportier tire?

It prioritizes comfort, low noise and tread life over maximum grip. Drivers who want sharper handling should look at a summer or performance all-season tire instead.