Originally Posted by Serbaside
Well you are saying that ISIS bottom brackets are not durable, but they are continued to be made. FSA is a quality brand and I feel that if ISIS is a horriable set-up then they would never have started to make them in the first place. So, it seems you don't have all the facts.
Just because the bearings are smaller doesn't make them less durable. I don't have a degree in physics so I can't give you any hard facts on force, weight load, etc. All I know is a the splined setup can take greater forces (just at in your tools at home, star > hex head > phillips > flat head). Also what is defective about the bearings? The race? because you sure as h3ll are not going to be able to actually brake a bearing.
I dont have any ISIS BB and therefore no experience. I just forwarded what I was told (by bikkhu I think).
Since he is a messenger in harsh conditions in Finland I thought he has some negative experience.
Everybody was saying in that old thread how much ISIS sucks and I asked why. Maybe its just this
oldskool reflex that everything new sucks.