Modern Vespa

I have a 530 HPE to which I have fitted Hepco and Becker hard side carriers. These fit and work very well, however they have increased the overall width of the MP3 by some 4inches / 100 millimetres on each side.
The end result of this is that I can no longer use my mirrors to judge my width when I am filtering. Can anyone please suggest either some replacement mirrors or some suitable extensions that will give me the extra width I need.?
Thanks in advance[/img]

I used stick-on mirrors like these for awhile, but they never really worked well. The mirror was prone to shaking out of alignment. I had thought that because it was on the end of a little stalk that I could position into the corner of the mirror and thus gain the convex mirror without loosing too much of the main mirror.

https://www.amazon.com/LivTee-Mirror-Frameless-Convex-Adjustable/dp/B07ZFHF14Q/

Tried these too but it wasn't a very good fit either, covered too much of the main mirror.

https://www.amazon.com/Motorcycles-Trailers-Snowmobiles-Bicycles-Resistant/dp/B09WP7MLP9/

In the end I just loosened the bolts on the main mirrors then moved the whole stalk into a better position. With the main mirrors tightened into the new position and adjusted I was able to see around the bike better and especially checking behind me while cornering on twisty roads.

You could also get secondary bar-end mirrors but that makes the bike over-all wider and they aren't in the field of view while riding. There are also secondary mirrors that can attach to the existing mirror stalks but you'd have to devise a secure way of attaching them.

Sorry guys I don't think I explained this very well.
I want the outside edge of the mirrors to be the same width as the outside edge of the panniers so that they act as a width gauge but I cant find any mirror extenders that are long enough or alternatively mirrors with much longer stalks.

Just put a couple of long zip-ties on the mirror stems so if the zip-tie flexes then the space isn't wide enough to fit though. These don't need to be permanent, just leave em on long enough until you've got a good feeling for space.

You can also get curb feelers, but those are metal and likely to scratch paint.

Good ideas, thanks 👍