I cannot confirm measurements, but this is a superimposition of the two adjustable stems, although each is not shown at their maximum height extension. As Jipe wrote, there is further back/forth adjustment via rotating the handlebar clamp.
Comfort & Sports stems
When I ordered my Birdy Rohloff, the distributor said, due to my age, he would recommend the 10° 'comfort' stem, but he was totally wrong – I lasted only two rides before ordering the 21° 'sport' stem, and am very glad that I did. Before that was fitted, I was actually contemplating selling the Birdy, because it felt so uncomfortable.
You should also pay attention to the grips. Initially mine had the straight/flat Ergon GP1, but now with GP3 Bar-End grips fitted there’s more room to move, relax and re-adjust your grip on longer rides.
Last edited by astage; 06-07-23 at 09:22 AM.
Reason: spelling correction