Originally Posted by
bikeman715
you need to adjust the tension on your shifter. you don't say what kind you have?when it is lose you will have this problem.
I have been all over the map with different tension and I think the derailuer might be a little loose itself, I looked in line from the back and when it flexes under tension I think it looses it's alignment because it will grind in and out much of the time. I think this derailuer might need replacing if that is the case.....right? How can you tell if the derailuer is good enough to keep using and not waste cash?