Originally Posted by
Capt Sport
Trekdude,
If the dent is not affecting the bike, I'd leave it alone. ... The bb shell is much thicker than the thin down tube and I wouldn't think it would have a negative affect on it. But if at all possible I'd live with the dent.
Cya,
jr
Good advice, IMO. But a SMALL hole in the BB shell might not be a problem. My first couple of mountain bikes, back in the '80s, had them for drainage, because we used to do a lot of water crossings. But they were steel, not aluminum..