Chris Froome has tested positive for double the legal limit of the asthma drug Salbutamol. What does this mean?

In this episode, your hosts chat with Peter Flax about his recent feature on American racer Bill Elliston, then call up Enve and Mavic to ask them about safety concerns with carbon clincher wheels. Finally, after eight positive tests at the Vuelta a Colombia, can we trust the best performances of Colombian cycling?