I have a 2012 Cannondale CX-3 with Tektro Novela disc brakes and all they do is squeal and squeak continuously!!!!!! I have returned this bike to m LBS a couple of time and they just don't seem to be able to get rid of this problem. They said they replaced the pads twice, but the problem still exists. I am getting to the point where I am considering replacing these brakes with a different brand. My problem is that I don't know what to use as a replacement. These brakes are mechanical, not hydraulic. Any thoughts/ideas/suggestion?