Originally Posted by
jacks1071
Wow they are expensive. Has anyone fitted the Dura Ace 7900 outer ring to an R603 crank? They are too expensive for me to buy and find it doesn't work.
I've read through the other threads linked and find people talking about this but I can't recall anyone who has done it and posted the results.
The Davinci cranks are looking better by the minute.
I believe that the ridges on the 7900 and 6700 cranks are different, so that 7900 rings won't look right on 6700 cranks (and therefore also not on the R603 tandem cranks). However, I've never actually seen anyone mount this combination, so I don't know just how odd it would look.