19-inch wheels are the largest wheels available for most passenger vehicles. They offer improved performance and a more stylish look, but they also come with some trade-offs. One of those is a rougher ride.
The larger diameter of 19-inch wheels means that they have less tire sidewall to absorb bumps and road imperfections. This results in a harsher ride, especially when paired with low-profile tires. The good news is that advances in suspension technology have made cars better able to handle the increased stress of bigger wheels and tires. If you're worried about a rough ride, test drive a car with 19-inch wheels before you buy it to see if it's something you can live with.