In the extreme it shows its strength

The strengths and weaknesses become apparent on extreme tours.
For us, the Kwiggle is a full-fledged replacement for a normal bike
and we wanted to know if and when the Kwiggle folding bike reaches its limits in terms of riding. 

300km/d around the IJsselmeer Kwiggle vs. road bike In the Alps 1.900 meter up to the Stilfser Joch