I am serious when I say crop-duster plane with my tires!
Now, my tires are semi-slicks, so was not surprised to hear that, but litterally looked out the window and up in the sky to see where the plane was headed first time I went for a cruise. This is something I really only hear coming to a stop sign from 25~5 MPH or so and on certain types of asphault. The Nitto's will be nowhere near what I have, but without knowing what you are on currently, now way to even give you an idea. I don't see them as a problem and can compare the two..
Nitto NT555's:
Toyo R888's:
The less tread-blocks, the more noise, generally speaking.
Don't be concerned, the NT555's will be a nice compromise between traction, mileage and noise, have fun!
Jazzer
