Bottom Brackets
 

Anyone use the American Classic ISIS bottom brackets? I know they are light and smoth, but how do they hold up over time? I'd rather not drop $120 on a BB if it's going to be as flimsy as their magnesium wheelset.

After reading too many horror stories about the Am. Classic BB failing, I bought an FSA Platinum Pro Ti. It is smooth, fairly lightweight, costs less, and has a better reliability record. This just seems like one of the areas on a bike where absolute weight savings shouldn't be sought.