The Raleigh Chopper beat the MTB brains trust by 20 years to this gem of an idea. I wholeheartedly think that someone in the MTB industry could come up with this a next big thing, write up why it is justified to improve you riding by 13%, raid the parts bin, added some funky new 'progressive' geometry and a few cool-as social media videos.But pretty sure you'd have to go custom frame maker for the ridiculousness you guys are talking about.
Small wheel up front is unnatural!! My bikes have matching wheel sizes, as the UCI originally intended!! None of this "wheelsize fluid" nonsense the kids these days are experimenting with.