Leesburg Bikefest

I took a quick ride from Tampa a few weeks back to the Leesburg bikefest. I saw a few cool bikes and a ton of crappy ones but that was to be expected. I did see these guys... this is way gnarlier in person. It felt like the whole thing was going to fall apart every time they rode past. I found myself wondering what would happen the first time someone tried this and how would you bail if something went wrong.