Originally Posted by
FrozenK
Explain why a cottage industry of external bottom bracket bearing replacement sprouted as soon as external bottom brackets became popular. That isn't anecdotal, that is a fact. While external bottom brackets have improved a lot, the fact remains that a low end internal BB will last 20+ years with no maintenance. I'd like to see a external BB do that.
Okay...I will pose the same question: what can you offer to substantiate this claim? All I'm reading is anecdote and opinion. I am in agreement with most of what you are saying but let's be real, it's all just hearsay.