Goodbye sweetheart - farewell to a dead bike

I wondered though about the Capo. Maybe I could have made the 56cm fit, but that would have included reversing the angle of the stem (turning it upside down), and also having a much shorter version. But wouldn't that have moved my center-of-gravity even further back? I wouldn't have wanted this, as I feel I already have enough weight over the back tyre, and do prefer my slightly aggressive lean-forward positioning to remain in situ.

According to the geometry specs, the stem would only need to be 1-2cm shorter (if directly swapping TT length for stem length), so no big deal.

You'd be able to achieve the same reach, and the same placement of weight with regards to the bottom bracket, by minor fore/aft adjustments to the saddle and so on. With your previous set-up, you actually had the saddle pushed almost all the way back on the rails, partly to add length/reach, and probably to 'virtually' slacken the seat-tube angle i.e. you'd be sitting no more over the rear wheel on the next size up, with a 0.5-1 degree slacker seat-tube, and the saddle pushed 10mm forward in the clamp. I still reckon a shorter stem might not have been necessary, especially with bars/hoods positioned and rotated accordingly.