Originally posted by tboner:
The tire may be taller when loaded depending on tire pressure and such, but according to what the numbers mean, the 215/55-16 SHOULD be a bit taller than the 225/50-16
However, even if the tire heights are as you describe, due to the weight of the vehicle pressing down the 55 profile tire a bit more, the circumference of a 215/55-16 will be about 1.5" greater than the 225/50-16, resulting in speedometer error as well as potentially slower acceleration. Not to mention, IF (and that's a big IF) the 215/55 is heavier than the 225/50. (Hey, it could happen) then you have more unsprung weight, which is usually not a good thing for handling and performance, not to mention, increased rotational mass.
I can tell you from driving, that wider is not always better. If you go too wide, especially relative to the wheel, then the tire will roll under the wheel and handling suffers.
All I have is 21 years of driving experience to share here. My certifications are all in the computer world, LOL.
TB
No, the tire is taller, with or without weight, so rethink your entire post. BTW, tell me the math you are using for your conversion, and your mathematical "facts".
