Radial engine bike by Jesse James

[onearmedbandit]

This one uses the same engine, albeit in a different setup. I like the first one (believed to be a Jesse James design) better as the engine is mounted the 'right' way.

[Bonez]

Rotaries and Radials are UTTERLY different concepts.

Rotaries have a "piston" that is shaped like a triangle with convex sides that spins around in a circular combustion "chamber" on a central bearing. Mazda's latest rotary has the ports on the side of the chamber allowing for better exhaust scavenging, better sealing and higher compression for a much higher power output.

Not all rotaries Jim...

http://en.wikipedia.org/wiki/Rotary_engine

http://www.keveney.com/gnome.html

[knuckles24]

so what do you do, do you have to tie your hands to the handlebars in order to hang on.