Originally Posted by
hazben1
I just went out and saw it has Megaexo BB8681 written on it. Hopefully this will shed some additional light on a replacement.
Easy to get this all over the internet. For example this one on ebay:
http://www.ebay.com/itm/FSA-Mega-Exo...item46152525e6
With that easy availability and only $14.99 each delievered, why try to rig a non-specified replacement? I sense you may be thinking the FSA bearing was defective (forgive me if I am wrong) from its failure and a Shimano replacement would be better , but that is not necessarily indicated. If you read hear often, you will see that periodic BB bearing replacement is a common requirement.