Purves Monowheel- This crazy looking vehicle was built based on a drawing made by Leonardo da Vinci! Known as a monowheel, the design for this wheel was patented in 1930 by a British inventor Dr. J. A. Purves.[720×570]

Comments

1. NasserThaKat

   Does it work though?

2. crimsonbub

   pretty sure General Grievous had one of these