triman11427 said:
I'm looking for a Touratech GPS mount for a Zumi 660/665.
Just a suggestion without knowing if it's specifically TT you want, or simply
A bracket to mount your GPS on. In my experience, the crossbar on the TT does not offer sufficient surface area to grip once I got off pavement. But, if you're hard after a TT GPS mount, too, I believe you'd have to go with a smaller diameter crossbar regardless, even if you went with a Madstad.
I ended up moving my Zumo 665 to the handlebars on my locking TT mount and using a Madstad after selling my TT. Even without a GPS mounted to the TT, it would still rattle loose over time and cause the windshield to fall down.