Anybody used either of these? Are they any good (insurance discounts )

I have seen them advertised on bike sites mainly and it seems like a good idea!!

 

Ed,

I've used Alphadot on my car (Recaro interior) and it works well enough but be aware that the "glue" is not as invisible as they like to make out....
Therefore I would use it in places which are not easily visible.


Works well enough but my insurance company doesn't offer any discount for doing it (nor for any type of "Tracker" for that matter ).

The magazine "Auto Express" did a test of the products here:

 

Thanks Gavin!