I have seen here 36T front chain ring for that fauber crank that bicycle has, there is also sometimes clock/bell fauber (direct translation) that would allow square type cranks to be put in, which would make rather nice selection of chainrings to front.
Mostly I like however this bicycle because of it's simplicity and brakes being used by foot, also strong thick chain that does not need replacing very often is good, chainrings are thick and strong, when I get around to get lower gearing I might put single speed rear wheel back, I don't need much of speed, just enough low gearing to keep it going at gravel roads and forest paths as I have that another bicycle to use on pavement.
I can get to 50kph speed with 2nd gear as that is now, with 3rd gear speed is not much faster, air resistance is putting the limit, but with more rpm I get to keep speed longer or alternatively travel further. I mostly use 1st gear even at pavement as with good spinning I can keep enough speed and can again travel further.
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