Join Date: May 2006
Location: Holland, MI
Bikes: Klein roadie, carbon proto mtn bike, burley tandem
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FSA Mega Exo BB's
FYI: The FSA Mega Exo BB on my front crank was totaled after somewhere far less than 3000 miles and I just found it after a routine disassembly to clean, check, grease, and readjust the BB/eccentric assembly which felt sloppy. The left side bearing fell out of the cup on disassembly indicating great wear on the bearing and/or the races. The BB and spindle were clean and not impacted by any grit. My LBS mechanic confirmed that they have seen repeated early failures on these BB's. A visit to BB reviews at roadbikereview.com also confirmed the problem, with less than kind words for FSA and their BB's.
A similar situation occurred with my wife’s new road bike with Truvativ cranks and BB’s. I immediately sh**-canned them and went to a Shimano Ultegra crank and BB.
Unless FSA can definitively document improvements to their BB designs I would be very hesitant to have anything to do with their BB’s, or their cranks, which can only be used with these BB's.