First of all, I have to say that it visually fits very well on the Yamaha Tracer 9 when I don't have the top case on... so +1 star for that!!!!

Very good and stable, it hasn't shown any signs of alteration or rust. HOWEVER...

There is a little issue that has arisen, but I'm not sure if it's a manufacturing defect or if there was a mistake in its installation by the store where I bought it, and for that reason, I can't give it fewer stars...

The issue is that a crack has appeared in the base between the screws located in the center of the base...

It's possible that it occurred either due to excessive tightening of the screws or excessive stress on the base...

They haven't been taken on dirt roads and have never been overloaded...

Nevertheless, it still seems stable... Maybe when installing it, it would be good to also place some O-rings to absorb the vibrations...

At the time this comment was written, the base and its case (Givi Trekker Outback OBKN58 Monokey 58l) have been mounted on the motorcycle for 8 months and have covered approximately 17,000 km on trips and daily use...