2018 900 Ryker, just started hearing this noise today. 1500 miles on odo. Noise is VERY annoying if you are used to not having it.

I literally just Googled this because I am having the same issue, however it only started after I tried to power slide the rear wheel turning right from a stop sign and the whole trike hopped a bit as the left front tire caught grip. So I was nervous I jostled something loose that shouldn't be. But ...

Has your dealer done anything yet?

So glad you posted about this because I have same problem and it drives me nuts!