It buzzes almost constantly, with a couple of exceptions when it is quiet, only if it is new asphalt and if the temperature is below 0. The first year everything is fine, the quiet one is almost inaudible, it started to buzz at +10, but after 5-10 minutes it gets quieter as it warms up. The second year the noise level increased, at the beginning of the season it was already buzzing at +15, but also after 10 minutes it became quieter and having probably already It has 35,000 total miles on it and is 50% worn. Thirty thousand miles had been erased from the Toya SF2, but it was still a peaceful ride; if you stick to using just brand-new Michelin tires, you should be good to go for at least a couple of seasons.