Its not the quietest tire on my trainer (cyclops fluid2) my road tire was slightly quieter. The nice part of these is that they are thick, and wear slowly. I've got about 50 hours on mine and have found that running them up at my road tire pressure (120psi) they are at their quietest and smoothest, lower pressure seemed to make them scream at higher RPM and they heated up quickly. I also like that they are such a loud color, so I won't accidently mix my trainer tire up with my street tire on a pre-coffee morning ride. I tried mine riding around the parking lot just for kicks, not recommended.