So. Found this interesting item at my local bike store.
Fits nice on the existing Luggage rack with velcro straps. And there are two side bags that pop out with zippers. Super handy!
That fits really nice 
And you are pretty tall - looking at your saddle height 
Hello Guzzio
What is the maker and the model of this bag.
It is corresponding to what I search.
Best regards Frsic
Hey guys. I’ll come back on this topic when i’m back home. I don’t have the Strida with me for the moment. Keep you all posted. Grtz. Guzzio