Replaced golf cart tires from bias to radial and the road noise now seems louder..

[pmull1954]

So my 2014 Yamaha needed tires. I changed them from bias ply to radials. The radial tires seem to have much more road noise. Is this normal?

[villagetinker]

If the tread design was different, that could be causing the additional noise, I have experienced on cars after a tire change.