I am bothered by road noise, I have seen here that some people have had success with lowering tire pressure. Mine were set at 45 psi. I did a quick experiment, using an iPhone decibel meter app, with iPhone placed on charging pad. I did the same stretch of road at 50mph, on autopilot, with tire pressure at 45 psi, then at 40 psi. To remove outliers, I discarded 10% of the loudest samples, and 10% of the lowest samples, and averaged the rest: 45 psi: 68.1 db 40 psi: 68.3 db I wish I would have had more time to make experiments at various speeds and average multiple tries and multiple phone placements, but the impression I get from this quick experiment is that lowering tire pressure doesn't seem to help with road noise.