50 mm cranks?

has anyone ever used these? I saw a pair on the miyata website and they looked kinda interesting, sounded fun. so what is your experience with them?

I think Brian M once put 44 mm cranks on his coker…it was cool.

in japan they have racing 24" unis and they put the 50 mm cranks on them


Holy crap, I could barely imagine the 50 mm on a 20" but 40 on a coker suonds insane. Must have been hard to start but the speed on it would be amazing.