[PeloRider]

Finally Roku, Peloton Partner To Provide Premium Workouts At Home | Digital Trends

 

[NightRider]

You can also stream to Roku from an iphone using airplay. I prefer this because it syncs with my apple watch to track my heart rate and it doesn't require logging in.

How to use AirPlay and HomeKit with your Roku® streaming device|Screen mirror your Apple device with AirPlay

Make an Apple Airplay connection with a Roku device and you can stream content, control playback, and screen mirror from your iPhone, iPad, or Mac on your TV.

support.roku.com