Zwift has redefined indoor cycling.

What started in 2014 with a 5km virtual track and a handful of users is now a global phenomenon. Just this weekend, for instance, Zwift had nearly 90,000 people sign up to ride one of the company's Virtual Tour de France social rides.

On this episode of Put Your Socks On, Bobby and Gus speak with Zwift co-founder and CEO Eric Min about where they company came from, and where it's going.

Some of the hurdles are technological: How do you ensure power-measurement accuracy and consistency with riders around the world using different equipment? And some of the hurdles are sociological or psychological: It took six years for the Zwift community to accept the idea of a burrito Power Up that makes them un-draftable for a few seconds.

"So we've taken baby steps [in adding game enhancements], but now I think if you took away all the gamification in the game, it would just be boring," Min said. "We even went to ASO to ask professionals, 'do you want these events to have have power ups or not?' They overwhelmingly said yes, we want power ups because why wouldn't you want to have a gift of an arrow power up? You know, ahead of a sprint. It's a freebie."