> For example for biking you could allow whatever vehicle the competitors choose so long as it is powered entirely by the cyclist. The World Human Powered Vehi

> For example for biking you could allow whatever vehicle the competitors choose so long as it is powered entirely by the cyclist. The World Human Powered Vehicle Association [1] oversees such competition, on land, in water, and even in the air [2]. [1] http://www.whpva.org/ http://www.whpva.org/ [2] http://www.whpva.org/hpv.html http://www.whpva.org/hpv.html