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Recommendation for Bottom Bracket(13 posts)

Recommendation for Bottom Bracketglia
Oct 23, 2003 1:43 PM
I would like to replace my Shimano Dura-Ace BB with something lightweight and durable. I have invested quite a bit in a FSA carbon crank and therefore don't want to go away from the Shimano compatible octalink. Any suggestions?
I don't believe anybody else makes an Octalink BB (nm)TJeanloz
Oct 23, 2003 2:46 PM
Lightweight and durable leaves you with Ultegra or Dura Ace.
FSA re: Recommendation for Bottom Bracketcharlieboy
Oct 24, 2003 1:36 AM
FSA make a variety of light and good bottom brackets that will go just great with your FSA carbon crank. Dura Ace is not bad also!;
Oct 24, 2003 4:30 AM
FSA makes a lot of bottom brackets, but none with an octalink spline. They make only ISIS spline and square tapered BBs with JIS and ISO tapers.
sorry re wrong...charlieboy
Oct 24, 2003 4:35 AM
So he has an FSA chainset for which there is no FSA bottom bracket - madness!
sorry re wrong...Rusty Coggs
Oct 24, 2003 4:53 AM
shimano has allowed others to make cranksets with the octalink design,but has so far kept the BB business to themselves.
Charlie, reread original post...russw19
Oct 25, 2003 6:52 PM
The poster states specifically that he has an FSA crankset with the Shimano Octalink spline pattern. Shimano will allow others to copy their pattern to make cranks that are compatilble with their bottom brackets, but not copy their bottom brackets. The ISIS spline pattern is not compatible with Shimano's Octalink. If you use a road crank that has the Shimano Octalink pattern, you MUST use a Shimano BB. No, it's not madness... you just seem to be confusing the ISIS and Octalink patterns.

If the original poster had a FSA crank with the ISIS spline, there are a bunch of different bottom brackets he could use, but that's not the case here.

Charlie, reread original post...charlieboy
Oct 27, 2003 1:52 AM
Thanks Russ; I'm not confused, I just don't read things properly! I know all these compatibility problems are such a pain in the neck - that's the madness to me. As a Campy only guy it also really pisses me off that I can't use a Record BB with anything other than Record or Chorus chainset, for example... still, it's all good fun isn't it?!
re: Recommendation for Bottom BracketIronbutt
Oct 24, 2003 5:22 AM
The Dura-Ace BB is actually quite durable, it's just not an install and forget component. If you make sure that it's installed properly in a BB shell that has been correctly prepared, it will last a long time. If you ride in the rain and don't service it, or if the BB shell hasn't been correctly prepared, the Dura-Ace BB will be destroyed in short order.
Get an FSAdgangi
Oct 26, 2003 12:48 PM
I think you have to get an ISIS-splined BB to be compatible with your FSA Carbon cranks. The Shimano BB's are only compatible with Shimano cranks.

FSA makes great bottom brackets for a reasonable price. If you are a wight geek, you can get one of their titanium BB's...otherwise, their chro-mo stuff is also very good.

I recommend you get an FSA BB, especially since you aleady have FSA cranks. If anything goes wrong with either, then you only have 1 vendor to deal with.

Check out this link for more info:

No, get the Shimano... re-read the orig. postrussw19
Oct 26, 2003 4:55 PM
The poster has an FSA crank that has the Octalink pattern. They were asking if anyone else makes a bottom bracket besides Shimano in the Octalink pattern, not the ISIS spline pattern. The answer to that is NO.

So the only answer is that the poster gets a Shimano bottom bracket as they are the ONLY company that makes Octalink bottom brackets. Simple as that.

Ambiguous postdgangi
Oct 26, 2003 5:56 PM
The original post is completely ambiguous.

FSA makes the carbon cranks in an Octalink pattern or the ISIS drive pattern. The post doesn't explicitly specify which crank it is.

If the FSA crank has the Octalink pattern, the ONLY choice is Shimano. Octalink=Shimano's own pattern.

If the FSA crank has the ISIS pattern, then there are tons of choices. ISIS drive=anything other than Shimano. In this case I would recommend FSA's own ISIS drive BB to keep everything the same brand.

Ambiguous postrussw19
Oct 26, 2003 7:32 PM
Doug, no offence, but it's only ambiguous if you don't read it....

The first sentence says it all...
"I would like to replace my Shimano Dura-Ace BB" ---- says it all right there... Shimano BB! If they have a Shimano BB and an FSA crank, they MUST HAVE a Shimano Spline pattern. No question about it. It's a must, not a maybe.

Further more.... "I have invested quite a bit in a FSA carbon crank and therefore don't want to go away from the Shimano compatible octalink" ---- again, poster just said, I have an Octalink crank. I see no ambiguity or question about this. It's as clear as day.

Don't get me wrong, I am NOT trying to pick on you, but you are giving this poster bad advice, and I am trying to correct it. They have a Shimano Octalink Splined FSA crank... don't confuse them and tell them to buy an FSA ISIS bottom bracket... you won't be helping them by doing so. I just want to make sure this guy gets the right BB... that's all.