Why not just get one of those circus tiny bikes that the clowns ride with 9" wheels, and maybe go 70mph Bro? hahahaha On a serious note, I'm thinkin about puttin a motor on my old vintage tandom bike. Hav'nt looked at the approach yet, bikes been sitting burried behind 7 MBs,{Rockvoice/mine bikes}. Good Luckthe next bike i'm building, as soon as the guy drops it off this week is late 1920's 20" bike. by all the backwards reasoning going on, it should do 60 mph.
or maybe, i'll put a 60 tooth on it and ride wheelies and do backflips on it...
(edit) is it just a weird foto, or is the coaster brake arm on the same side as the sprocket? i can't wait to get this thing...