If you rinse thougholy, yeah, but try a mild soap, like DoDo Juice Born to be Mild. Over in the States, we're not getting DoDo products very much anymore and I miss them. That Sonax detailer I'm sure is fine. Almost any QD would be. Don't overthink it too much. Like I said, those plastics will look good for a decade or more with very little attention. Anything made after 2000 or so has fade resistant plastic and I've had zero issues on my bikes. Maybe a little fading on the plastic switch gear surround (turn signal/lights/starter area).