Gone, but not forgotten
Join Date: Jul 2002
Location: Newtonville, Massachusetts
Bikes: See: http://sheldonbrown.org/bicycles
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Originally Posted by Retro Grouch
But the cog spacing has to match the shifter. In this case, I think that I've read someplace that 8-speed Dura Ace is spaced like the other 9-speed Shimano groups.
As an interesting aside, QBP doesn't have any 8-speed Dura Ace cassettes listed in it's current catalogue. Do you suppose that might be why the OP was able to acquire the Dura Ace stuff for a reasonable price?
Maybe if I mention Sheldon Brown in my post it will cause his computer to nudge him and he'll give us the definative answer.
The O.P. also asked me this question by email this afternoon, and I replied:
>I bought a nice Mega 7 11-28 freewheel from Harris Cyclery and would like to pair it up with
>some components I recently acquired.
>I'm wondering if it would work with either
>Dura-Ace downtube shifters, indexed 8 speed with matching Dura-Ace RD
This will probably work. 8-speed spacing is slightly different from 7, but close enough.
>Suntour Accushift downtube shifters, indexed 6 speed with matching Cyclone 7000 RD
No, but those shifters will work with any Shimano rear derailer (EXCEPT an old (pre-9-speed) Dura-Ace) for 7-speed use.
All the best,
See also my article on Dura-Ace interchangeability: http://sheldonbrown.com/dura-ace