Hi,
Thanks for trying to reproduce the problem, but you just couldn’t. You’re just not as dumb as I am, lucky man!
I realized on the way back that sometimes, after folding the bike, I push it backwards, I mean with the handlebars facing towards me. In that case the pedals rotate.
If I push it the other way round, they don’t.
Now I wish I never posted that stupid remark, but hey, you never know, it could be useful for some other Strida owner with an IQ as low as mine 