Quality construction. I don't think it can fit 2 helmets in any case. However, it fits one full face touring helmet size XL and two summer jackets. I can't see it in the mirrors (mounted on a Forza 750), while I am very impressed that it doesn't create instability for me, only when it is heavily loaded and with strong wind. Under normal conditions, up to 150, you don't notice anything.

I have put it on a tracer 900... The only sure thing is that two jet helmets do not fit... otherwise nice case with nice design... I would prefer the locking on the rack to be better, because most of the time, it takes 2-3 hits to snap it.

It fit in Tracer 9 21'.
Visually very good result. It comfortably fits a full-face helmet and some small items on the side.
It doesn't stick out much and I can't see it in the mirrors.
Very good fastening and material quality from givi.
It hasn't let water in during washing or rain.
You need to put a carpet - lining, to prevent things from banging inside and scratching the helmet, etc.
I am satisfied