I've never built up an older bike before, but i've just got a Concorde Aquila SLX. I've managed to free the stuck seatpost with Scale-X, but the seatpost bolt itself is missing.
Measuring the outer distance of the two lugs, it comes up at 22.4mm. Where the bolt sits is a little recess, so do i need a 22mm seat post bolt, or a 19mm, or something else?
Also, the BB shell is 70mm wide and has an internal diameter of 35mm, give or take. This is a Chinese vernier gauge i'm using so, you know, it could me slightly out.
If i'm to fit the 105/Ultegra stuff in the parts bin, do i need the Shimano Hollowtech BB with Italian thread?
Thanks in advance.