Originally Posted by
genejockey
Phil Wood makes them down to 103, which is what I used on the Ritchey, since the 7410 crank takes a 103.
Assuming it's symmetric, that would still only move the chainrings in 5mm. I think that specific crank is a lost cause.
Regarding your comment about going from 8-10 speeds, I have been wondering if I would need to get 11s specific rings for whatever crank I use. Does the inner ring always define the spacing? That would be great if so.