On 10/30/2016 12:37 PM, wrote:
On Sunday, October 30, 2016 at 12:08:24 PM UTC-5, AMuzi wrote:
Didn't you write Shimano 600 earlier?

Yes, this is what is printed on the cranks and the gear shift levers. I thought this was a.k.a. "Shimano Dura-Ace."

The classic New Dura Ace BB interchanges with Campagnolo
1046A which is a different taper section than the most
common[1] modern cartridge crank spindles and asymmetric as
well.

Are you saying that the typical modern cartridge crank will not fit my bike? Also that I need an asymetric cartridge and this will cost me more?

What does the Campagnolo 1046A have to do with this?

If it's a BB7400 I would rebuild it or have that done. Nice
product well worth keeping IMHO.

Is "7400" going to be stamped on the bottom bracket somewhere and evident when I take the BB apart?


[1]There are good cartridge replacements but not for $15


That's fine. But from what you wrote, now I cannot tell whether one even exists for my Vitus 979.


Your New 600 cranks will be stamped FC-6207, FC-6208 or
similar on each arm. The New Dura Ace arms will read
FC-7400, FC-7401 or similar. Matching crank bearings will
share the crank number series, BB-6207, BB-7400 etc. When
you know what you actually have advice will be straightforward.

New Dura Ace crank bearing assemblies are an exact
interchange to Campagnolo 1046A Nuovo Record which was
considered a feature at the time as there was such a large
installed base of replacement parts across many brands for
that format. Shimano 600 is different in taper section and
spindle format.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971