Bicycle Mechanics - FSA mega exo omega Bottom Bracket replacement

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JIF
03-10-10, 08:19 AM
Howdy

I need to replace the above BB and are trying to source an alternative and think a shimano 4500 bb may fit but im not sure. Its a 68mm (the exo) bb but im unsure if the end cups of the shimano are all the same diameter ie are they a universal diameter other than the different thread types

Thanks for looking

Jif
http://www.wiggle.co.uk/p/cycle/7/FSA_Omega_Drive_Mega_Exo_Bottom_Bracket/5360031684/

http://www.wiggle.co.uk/p/cycle/7/Shimano_Tiagra_4500_Bottom_Bracket_Cup_Set/5360027350/

DMF
03-11-10, 09:08 PM
What BB interface does your crankset require?
operator
03-11-10, 09:13 PM
What BB interface does your crankset require?

It's a mega exo bb, which is external.

OP: Stick with the proper replacement external BB - that would be the FSA Mega exo that is spec'ed for your specific crank (which you forgot to tell us).

metabike
03-12-10, 08:02 PM
It's a mega exo bb, which is external.

OP: Stick with the proper replacement external BB - that would be the FSA Mega exo that is spec'ed for your specific crank (which you forgot to tell us).

I seem to remember prior posts from folks who swapped Shimano BB's for FSA's due to the FSA BB reputation for lack of durability. OP, did you do a search on the Forum?