Does anybody know if anybody makes a windshield channel that can fold down to fit into a smaller place when the Bikini is off?

 

I understand... The bikini tops require a header channel. They are the length of the windshield at the top.

If there is one, I haven't seen it. What I do is leave just the rear roll bar straps attached and roll the bikini top back to the rear roll bar and secure it in place with strips of velcro "tape"

Its the easiest solution I have found for when I have the bikini top on the jeep and want to open the roof without leaving the top at home....

Hope that helps or gives you an idea