Hi there, I had been using Shad SH48 top box for more than a year now. Quality is good, no discoloration even though i park under the sun everyday. Long distance ride with cruising speed of 170 kmh doesn't shake the bike much, but be cautious when riding close or behind huge vehicles like alphard/ esteema etc. That shakes the bike a bit. I am on touring bike, not sure if it will be different for your naked.

Besides that, I store 2 helmets in it, and still have some space for my other stuff like tool kit, phone holder etc. Locking mechanism is sturdy and never gave problem so far.

I am looking for side boxes by the way. Not too big, just to store raincoat. Share with me the price if you come across one.

I am using CB500X. For the top box, I use Givi bracket with SH48. Hope can use givi side bracket with Shad side boxes too. Cheaper to get givi stuff.