Hangout with Australia's newest World ChampionReigning BMX World Champion Caroline Buchanan has just returned to Australia after winning her second World Title of 2013. In the space of 56 days Buchanan competed in three World Championships- BMX, Downhill and Four Cross- winning the BMX and Four Cross titles. Buchanan reveals the heartbreak of her London 2012 campaign continues to fuel her dreams of Rio 2016 gold.