Quote Originally Posted by Seajay View Post
I ride flat pedals, so it can't be foot position related Yes it can. depending on the set up and the shoes you use....there are a myriad of foot control/saddle height/knee stability issues that can come into play.
I concur - I had no choice but to return to clipping in because my knees didn't like my flat pedals. As long as my feet/legs were in the right spot they were fine, but of course it is challenging to keep it that way.

Converting to flat bars is expensive, is there a good fitter in your area that you can visit to discuss all of this with? A good fitting is also expensive, but you don't want to make that change to your bike unless you are pretty confident that it will solve your problem. For me it was the perfect choice, but it may well be that some other solution will work better for you.