Originally Posted by Hocam
Cartridge bottom brackets tend to last 5,000 - 10,000 miles, more if you're using Phil stuff which I think can be overhauled.
Five to 10k mlies? What are you
doing to ruin a cartridge BB that quickly? I had a good 35,000 miles in a 1998 Ultegra BB; it got retired only because the bike did. My new bike has an FSA ISIS BB with about 8,000 miles on it (and rapidly counting). Nothing wrong with it yet.