Move over Japan. China is making huge strides in the field of weird and wacky. Check out this crazy bicycle with a pentagonal wheel on the the front and a triangular one on the back. It was developed by Chinese inventor Guan Baihua who believes that people will want to ride the bike because it requires more effort than a conventional bike, and thus provides a greater workout for the rider.
Alternatively for those of you who can't order one of these bad boys all the way from China, you can try peddling a regular bikes with the brakes on. Polygonal & Triangular Wheels
As silly as it looks and sounds, there might actually be some intelligence behind this crazy bike. The edges are not straight, but rather bent in such a way that the diameter across both shapes is the same no matter where it is measured. Gao explains:
If nothing else, the math is certainly cute. I'd love to see a video of this bike in action, so if anybody comes across one please let me know in the comments.
"This means that as I cycle, although the wheel itself does not have a fixed
centre of rotation, the saddle of the bike doesn’t bob up and down as you
might expect but stays a fixed distance from the ground. To get the exact
contours for the shapes, the curved edges are drawn so that they are part of
a circle centred on the vertex opposite the edge. They are called Reuleaux
polygons after the 19th-century German engineer Franz Reuleaux, who did
pioneering work on machines that turn one type of motion into another."