Well, not to bring back the original thread... my Dawes lightning DLX ebay bike's bottom bracket took a dump on me after about 1500 miles ... it started creaking at first, then whining ... and then it finally went BOOM and it slid all the way out on the drive side until the crank arm bottomed out on the other side...
I went to the bike shop and picked up a replacement sealed BB from shimano - not sure about what series it is... I paid $ 39.99 for it + 15.99 for the BB tool...
About 20 minutes later I had this to show for it..
1 busted RPM sealed bottom bracket:
1 shimano sealed BB empty box.
1 perfectly smooth running ebay bike !
Hopefully this BB will last me more than 1500 miles !