Originally Posted by
digitalbicycle
I'm just about ready to strip it down, put the components on the Premis, and give it away. Why, you ask? Well, it's got terrible BB flex. No matter how much I tweak the limit screws and trim the front derailer, I still get lots of chain rub inside the cage when I pedal, even at moderate speeds when I'm not really cranking. I even tried bending out the derailer cage to make it wider. This seems strange to me since the steel on this thing is not particularly lightweight. Has anybody else had a similar experience, and is there anything I can do to correct it?
Play the odds, which say a probable twelve to seven that you should first check to see if the spindle or crank is bent.
Here's how:
http://www.sheldonbrown.com/straighten-chw.html
and this might help with the diagnosis:
http://www.sheldonbrown.com/creaks.html