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- State of Jefferson
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- 2017 CX-5 GT AWD+
I did Google before I posted to confirm if what I thought I was feeling could be from going to 19s. Car & Driver and Motortrend both have articles stating that is one of the main benefits of 19s. So, sure, you probably felt a difference with the stickier Winters, but you'd see a bigger gain still with 19s, I think.
Re: bumps. Went down a brick road today that my son and I drive on every day after I get him from school. Definitely felt bumpier.
Apples and oranges again. The wild card here is the sidewall height. That should make more difference to handling and ride than simply wheel diameter.
Other factors include sidewall stiffness, rubber compound, tread geometry, belt construction, and on and on.
The only way to really determine the cause of what your feeling is to compare the same model and cross section on the same car, e.g., 225/55/19 vs 225/55/17.
Cut it down to just ONE variable.
Of course that will throw your speedo off. This would be for testing purposes only.
That said, I have no doubt that what you're observing makes perfect sense, and so does what both CDs [Colorado Driver AND Car and Driver] say.