The product I bought needs roof rails. The bars clamp onto the existing roof rails. I don't think it would work on a "naked" roof. You probably need a different product.
There is no listing from the brand for this model, but you can check on the Thule website by indicating the brand, model year, model and roof type of your vehicle to see if it is compatible.
Hello, unfortunately I can't tell you, I bought it for my Ford Kuga and it fitted. The system for attaching it to the railing can be adjusted.
Grüässli
Thule offers the right roof rack for the different car models at https://www.thule.com/de-de/ch/roof-rack. Since SmartRack 784 does not appear on the Skoda vehicle mentioned, I assume that it does not fit. But I have not tried it out.