I had the same problem on my Kurt Kenitic. My my back tire was squeequing so loud, I changed tires and pumped more air into the new ones. Not a sound, but last night, the noise started again, not as bad as the other tire, but getting there. Tightened the resistance knob, still loud. I don't know what to do. I read other forums and they all say Kurt kenetic is very quiet, so they obviously don't have that problem.