I'm still under the 10 post limit to be able to post photos.

I have my Birdy Rohloff ready for action with the Humpert Ergotec AHS handlebars which provide extra comfort on longer rides by allowing different hand and body positions (photo fotthcoming when I've got enough posts). However, it's necessary to slacken the clamp and rotate thees bars to the vertical position to get a compact fold. The bottle cages are fixed by SKS bottle cage mounts which have adjustable straps and quick release latches so easy to remove for transport. I've also got a pair of Carradice front pannier which fit nicely onto the front rack and there's also the option of a bag on the rear rack.

I did some measurements of the bottom brackets and cranks on both the Birdy City and the Birdy Rohloff. Both cranks are 139mm across the ends. The chainline on the Birdy City (blue bike) is 47.1mm (measured by calipers between centre of chainring to the far side of the 40mm dia seat tube then subtract 20mm to get the centreline) whereas the chainline on the Birdy Rohloff is 50.8mm. This is significantly less than the 57mm recommended by Rohloff for the 13T sprocket on a splined carrier but that's another issue. There might be small errors in my measurements due to estimating the centre of the chainring axis.

I also did a trial fitting of the front derailleur on the Birdy Rohloff.The larger chainring is just within the limit of the cage when in the inner position. However, I did not spend time fitting the smaller chainring to see how it would line up. It might just work but I'm not going to spend time investigating.