Thunder on the Strip in Geneva on the Lake 9/9 covered bridge ride

[RickW]

How much highway is involved in the ride? My wife rides a rebel 250 that doesn't like sustained speeds over 65 or so. Just wondering if we should ride two up?

There is no highway at all. Just state routes and back roads. As long as you can go 55 mph, ride through a wooden bridge, and maintain distance from the bike in front of you it is fine.