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.