I have added photos and measurements of the storage space on the 2014 Forza. You can find this at http://myhondaforza.com" onclick="window.open(this.href);return false;.

Interesting, the helmet in the front section is facing backwards, I put mine in facing forwards and there's enough space in the rear section for my riding trousers and jacket, gloves fit easily in the lockable box.
So I can park up at work and store all my riding gear in the scooter.
With my old PCX I needed a topbox.