It's always a geometry exercise. You have two choices, pick a smaller big ring or a wider axle. Look very closely at your chainline to begin with. Then also question whether the single gear option is worth changing anything. <http://img.photobucket.com/albums/v728/bulldog1935/Raleigh/Fuji/fujidrive4.jpg>
On my daughter's go-fast, she built up from an '86 Team Fuji frame, we used a mix of new parts and those already hanging around. For her crankset, she used my old Sugino Mighty Comp, which is a 144 BCD strada clone. Ran into the exact chainline problem you're having, so swapped the 52T ring for a 50T and solved the problem. On Friday, July 31, 2015 at 1:53:00 AM UTC-5, RDS wrote: > > Installed the Sugino Wide/Low double Crank (40/26). Still in repair > stand. 9 Speed. Cassette is 11/34. When the chain is in the small ring > up front and the small ring in the back (yes, I realize that this might not > be a good gear combination to ride in), the chain is making contact with > the inside of the big ring. To clarify, the chain is NOT coming in contact > with the FD, but the inside portion of the big chain ring. > > Does this mean that I need a BB that is more wide? Or does this mean that > I should never have the chain in that combination? Or ??? Any help > appreciated. > > Bike is a 59 Soma San Marcos. > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
