Is there a universal tank ring

I have a perfectly good tank bag that I'd like to mount on my tank (keyless GSA) using a tank bag ring, such as the ION sold SW Motech. My point being I dont want another tank bag.

I have a vague recollection they were available a few years back and you could fit part to your tankbag and of course the other part was a ring for the tank, but being of a certain age my memory is failing me.

Has anyone got one and could tell me where it came from?

Alternatively I guess I could look for a cheap used Evo tank bag and cannabilise it for the fitting...

You need a specific SW motech ring for the keyless ride and yes, you can also buy the bit to bolt to your bag.
Motohaus are my go to supplier in the UK but I have no idea for France sorry.

https://www.motohaus.com/sw-motech/luggage-systems/tank-bags/evo-tank-rings/bmw/black_for_bmw-models_with_keyless_ride.html

And

https://www.motohaus.com/sw-motech/luggage-systems/tank-bags/evo-tank-rings/not-brand-specific/for_evo_tank_bags_quick-lock_function_black.html

Thanks Shakey. I get back to Blighty regularly, so Motohaus will do fine.