I have a question:

I currently have a Dura-Ace 7900 crank-set installed and I am thinking to swapping it with FSA K-Force Light Ti. I wonder if BB from Dura-Ace 7900 can accept FSA crank or not?


TIA

Since no one has replied yet,...FSA's site shows their different BBs and compatibility. It lists a different BB for use on FSA aluminum cranks, and my understanding is that Shimano BBs can be used in lieu of FSA BBs only on FSA aluminum cranks.

My wallet won't let me ride an $800 crank. No hands-on experience with that crank.

Well, two things; first, for external bearing cranks, the bottom bracket cups are by far the cheapest single component so why not buy the ones that match the crank? Second, why would you substitute an FSA crank for a Dura Ace? What advantage could it possibly have?

Thanks for your replies! I am not sure about the swap yet, nothing is wrong with my crank it's just I think it will look better with my setup..

Well, that's a lot of money for a (questionable, IMO) cosmetic "upgrade".

Also, FSA cranks have a mixed reputation for both quality and shifting performance. Some work well but there have been a lot of problems reported with them also. If I already had Dura Ace, there is no way I would look for anything "better".

It's a swap with other person, not upgrade

OK, then swap the bottom bracket cups also.

That is a dumb swap.

The 7900 crankset shifts the best with it's own drivetrain, not to mention the large ring of the 7900 is unparalleled in terms of stiffness. Overall, the 7900 crank is lightyears ahead of the carbon FSA you plan on switching 'to'.

Most of FSA problems have been concentrated on

a) arm recalls
b) chainring quality
c) bottom bracket quality

In short, they suck in all areas. The only reason any manufacturer spec's FSA cranks OEM on their bikes is for pricepoint.

Crank in point, ****ty 50/34 compact gossamers that were standard on all cervelo S1's.

Oh, my... I didn't expect to hear that many negative remarks about FSA crankset. I guess I am going to pass then.

Btw, how's richmond hill doing?

I'd say you're getting the crappy end of that swap.

Having used only mid to low range shimano and FSA cranks (and others) all with no real issues, I'll refrain from judging the relative merits of each company's top tier offerings. However I do know that FSA carbon cranks use their own size bottom bracket cups for the 24mm (?) spindle, so no your current bottom bracket will not work.

I wonder if all those negative comments are from first hand experience.

Operator's certainly are. Mine are a close second-hand. My LBS had a bunch of mid to highline bikes come in with FSA cranks and had to have the bike's manufacturer replace them all due to insurmountable shifting problems. As operator noted, FSA cranks are supplied to maintain a pricepoint, not for their superior quality.