Hi. Do you need to cast from the bike? You can do workouts directly from inside the streaming apps on Apple TV, Roku, FireTV, etc as one option. You can also do them from your phone or tablet and use AirPlay to show them on your Apple TV. If you play it from the mobile app and you have an Apple Watch you will also get the benefit that it will track your HR during the workout. You should be able to cast to Roku or FireTV as well if you really want to do it from the bike screen. Here's a video on that.
Does tha thelp?
Stefon
Does tha thelp?
Stefon