Never seen these before—Free motion rollers

[Gator1736]

These look like fun. Anyone ever tried them?

http://www.youtube.com/watch?v=MAvVcNxGlR0&NR=1

[brider]

There was a link to a thread on some other board about how the guy made these…

http://www.bikeforums.net/showthread.php?t=196027

Also, there’s a commercial variety:

http://www.insideride.com/