4rd attempt almost a success!
My problem was that I moved the rim tape while installing the tyre (very hard with mousse).
Now it keeps the air but I have one leak, between the rim and the tyre, next to the welded join of the rim.
No sealant added yet, my plan is go out for a spin and then put...
After slashing the rear tyre tried to put a new one with new rim tape, always the same result, after an hour or so, it drops from 2 bars to 0.5 bars.
This is my 3rd try, in my second one, put sealant and was a disaster, losing drop by drop thru the spokes.
The last one I didn't put sealant yet...
I am in the same boat, but with pw-x3, any news?
It has 2 noises, the normal one when pedaling and the other when I stop pedaling o when I reach the limit, but not always, like you said a grinding noise...
Feels weird...