We've asked you to ask Josh anything (kind of meta, we know), and you do not disappoint. In this episode, however, we completely lose track of the "ask" thing because we are SO GEEKED OUT on Ronan McLaughlin's new Everesting record. If ever there's been a full-circle Marginal Gain moment, this is it. Listen and you'll understand.

Eventually, however, we do get to your questions, including:

• The most reasonable way to measure your wheel circumference
• The best bike positions ... if you take aero OUT of the equation (hi Zwifters!)
• Whether new pavement means you should start putting more air in your tires
• How nearby barriers affect your time trialing

We love our listeners' questions. Keep them coming.