So a 205/55R16 is a tire that is 205mm wide, 112.75mm (205x55%) high, on a 16 inch wheel. A 205/60R16 is 205mm wide, 123mm high, on a 16 inch wheel. Both of there tires can fit on a 16 inch wheel.
205/55-R16 tires are 2.75 inches (69.9 mm) smaller in diameter than 225/60-R17 tires and the speedometer difference is 9.9%. The correct tire size is crucial for the overall performance and safety of your vehicle. While it may be tempting to replace a 205/65 R16 tire with a 205/55 R16 size, it isn’t recommended. The significant difference in diameter between these two sizes can lead to inaccurate readings on your speedometer and confusion for the car’s computerSimply put, it is made up of a series of numbers. Let’s use 205/55 R16 as an example. The first value (in this example, 205) is the tyre width in millimeters. The second value (55) is the tyre profile in percentage. The third value (16) is the rim diameter in inches. The letter at the start of the third value refers to the type of tyre
So I wanted to get a second/knowledgeable opinion cause I have always run 215/60R16 and am not exactly pleased with having to run the 205/60R16 but I cannot also allow them go to waste. Wrong brand new tire size that fits is way safer than the correct/recommended tire size that is bare, so I might end up with the 205/60R16 until the next tireTire Size Calculator - Tire & Wheel Plus Sizing. BETA. 1.40% too fast. 1.40% too fast. 215-65R16, 225-60R16 tire size comparison with 1010tires.com Tire Size calculator. Use our tire calculator to compare tire sizes based on tire diameter, radius, sidewall height, circumference, revs per mile and speedometer difference. 115/70R15 = 21.3X4.5R15. 125/70R15 = 21.9X4.9R15. 165/50R15 = 21.5X6.5R15. 195/45R15 = 21.9x7.7R15. Tires By Vehicle. Use our tire size tools to calculate specs, speed, gear ratios and more. Browse tires by size, vehicle, or brand and compare prices online all in one place. The new tire will be about an inch taller than stock, so you'll have about a half inch less clearance than the factory 215/45R17. I think that's fine. Your speedometer will be off by around 4.5%. Murdoc is right, your fine. Last edited by irax; 03-29-2016 at 12:57 PM. 03-29-2016, 12:32 PM.