Mark Franzels wrote:
On May 17, 10:37 am, SMS wrote:
I saw this today at the USGS Open House in Menlo Park:

"http://i41.tinypic.com/ouz91t.jpg"

Later I saw the owner riding it.

If collision occurs and the chain goes off, the sharp
slicer disc at the front can slice the person bottom
wide open. Dangerous.

There are a lot more dangers in a recumbent than that unlikely scenario.