[Sportstick]

Every time you shrink the sidewall and enlarge the wheel size, impact harshness deteriorates, all other things being equal on your car. That’s just physics. There is less rubber to absorb impact force. The issue is your sensitivity and the quality of your roads. Some feel it, some don’t, and some don’t care. I went the other way with the MAdaptive suspension, replacing 18s with 17s, but I am in Moonchigan driving around craters. BTW, if your 19s are heavier than what you take off, you are directionally going the wrong way for performance...loss of acceleration and fuel economy and longer braking distances, although the differences are usually small.