That will be unusable for many cyclists because the fat top tube does not clear their thighs.
Top-tube rigidity will be a problem especially at that joint - it needs to be stiffest up and down not side-to-side.
Many cyclists would want to use standard rear wheels as well (I have three spare rear wheels with standard 130mm OLD axles in my shed).
Last edited by Drew Eckhardt; 04-16-14 at 02:36 PM.