• It looks like Whitt and Wilson's classic Bicycling Science is about to get a fourth edition: https://mitpress.mit.edu/books/bicycling¬≠-science-fourth-edition

    From the looks of it this may have more on stability and steering dynamics (the Jim Papadopoulos material is probably based on his more recent research in this area), but the earlier editions didn't have a huge amount on structural design, at least not at the detailed level. Looks like you can now get second-hand copies of the third edition for under a tenner; at that price it's definitely worth a look.