AJA #51 Road Spray Aerodynamics and Argon Gas in Tires

Josh sinks his teeth into questions on turning road spray on a frame into aerodynamic information, Argon gas in tires and deep, carbon wheels for XC mountain bike racing. 

We also talk about Fatty's successful Everest challenge – the Marginal Gains that worked and the ones that didn't. And we get into some new happenings with Silca.