Bikerscum, right below minibikes and way above go karts, a powered bicycle to me really evokes the imagination, and yours are mind bending! Paint throws me off at first, but then seeing that 212 in there - and I know THAT'S for real - gets me going!
I may commission you someday to make me one, maybe on the lines of this one:
Looks kinda like a British WWII motorbike, fat tires, but stick a Predator in it......