Allright, I'm out of ideas. I can't figure out what this rattling noise is on our 2017 Kickr. Most of what I can find online is the 2018 Kickr problems. The noise is almost like a rattle. Started a few weeks ago, I took the pulley cover off and adjusted the belt tension and that made it better for a week or two. Worked fine yesterday. The bike hadn't been taken off or anything and then it was making this sound again today. The only thing I found that seemed off was the freehub was loose. I took the cassette off and tightened that, doesn't seem to have helped at all.


Hope these give an idea on what the sound is:

https://www.youtube.com/watch?v=pTWPxJy-Qtg
https://www.youtube.com/watch?v=cxejjJD3p18