So I have been feeling/hearing this... grinding noise coming from my BB (i think?) when I'm really mashing hard on it (climbing etc). Grinding is kind of the wrong term. It is more like I can really feel the bearings moving instead of them being super smooth. Like they aren't greased enough. But the BB is a shimano sealed that has only been in the bike for a month. I was totally smooth when I put it in. Could there be crap somehow stuck in/around it giving it that feeling?
-Jarrett