How would they pedal?
^ With their foot.
The same way a suii goes. Magical yukkuri powers that aren't useful in any way except for to move suiis.
Well, I figured a suiii is a kinda magical artifact, powered up by energy emanations from yukkuri.But a bike(1st frame) is a mechanism. To operate it, the yukkuri would need to have telekinesis ability, powerfull enough to simulate human legs. This would make them dangerous.
the fist panel bike is certainly mechanical but the second one it's could be magical