I should add that I am using linear pull brakes rather than the Mafac canti brakes that were on it when I got it because the swap from 650b to 700c moved the brake track out 19mm. I'll go pull the seatpost now and check that. It would be really great if the seatposts were 26.4 because I have one or two of those laying around from a mix up in the other direction a while ago.