215/55-R16 tires are 0.43 inches (11 mm) larger in diameter than 205/55-R16 tires and the speedometer difference is 1.7%.
205/50-R17 tires are 0.24 inches (6.1 mm) smaller in diameter than 215/55-R16 tires and the speedometer difference is 1.0% The new WeatherPeak is designed with open shoulder slots for better grip and driving control in wet and dry conditions – giving you a smooth, quiet ride any time of the year. And it’s 3 Peak Mountain Snowflake Certified to offer improved winter braking power, stopping 30 feet shorter than the competition*. With WeatherPeak, you’ll enjoy

215: This number indicates the tire has a width of : 215; millimeters.55: This number means that your tire has an aspect ratio of : 55%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 55% of the width. In this case, the sidewall height is 0; millimeters.Radial: This letter indicates how your tire

CINTURATO P7™ (P7C2) is the latest Pirelli Summer high-performance tyre for premium cars and Crossovers with a strong focus on wet performances, mileage and rolling resistance. These features are perfectly balanced, making the new Cinturato the first choice for the best car manufacturers. The new tread pattern design and profile, in addition
235/55-R16 tires are 0.02 inches (0.5 mm) larger in diameter than 215/60-R16 tires and the speedometer difference is 0.1%.
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difference between 205 55r16 and 215 55r16