Shimano 7700 to 7703 Cranks

[David James]

Is it possible to use the chain rings from a 7703 setup with the crank
arms from a 7700? They look at first blush to be a match, but I have
to guess without actually taking them both apart and trying. Do the
7700 cranks fit onto the 7703 BB?
Thanks
David

 

[bfd]

Basic answer - NO! Sheldon Brown's excellent Dura Ace article explains
in part:

"the Dura-Ace is specifically designed NOT to fit a standard 130 double
crank, because the "shelves" that support and center the middle ring
get in the way. The "triple" Dura-Ace crank has had these "shelves"
machined off flush, so it is the only crank that can accept this
chainring, even though it does still use the standard 130 mm bolt
circle."

For more on Dura Ace, go here:

http://www.sheldonbrown.com/dura-ace.html