Think trials riding's hard? This loon does it on a unicycle!

Yep, that's right – here's Australia's Joel Gleeson doing some trials riding, the ultimate two-wheeled test of balance and precision, on a brake-free unicycle. We don't think he'll be challenging Chris Akrigg or Danny MacAskill any time soon, but the boy's got balls. Swollen ones, presumably.

Source: Joel Gleeson Unicycles