Apple Fitness+ seems like a good deal only if it can replace the Peloton App. To do that, it will need to get the bluetooth information that the Bowflex C6 bike is providing. There is no clear information about what the Fitness+ program will use for inputs.
As of right now, there isn't any information that it will connect to software on bikes. All we do know is that it's primary focus is to use sensors around the Apple watch along with showing intructional videos on any other Apple devices such as iPhone, iPad, Apple TV, etc.
They also note that you have to have an Apple Watch to take advantage of the metrics. Your bike might as well be useful as some workouts require treadmill, dumbbell, bike, etc.
Full FAQ at the bottom of this page - https://www.apple.com/apple-fitness-plus/
Will Apple Fitness connect to my Bowflex C6 bike?
