I have both the Rad mini st and the Rad mini 4. For traveling I use my pick up truck and take both along on our camping trips. I have a long pull out draw along one side of the box and that reduces the area but am still able to get in #2 Craftsman 50gal. plastic totes in with the rad minis. I will say that even at that size they are snug. It takes two of us to load in the tote and 2 of us to put them into the truck. I have a truck cap on the box and have to take down the handle bars completely to get in. I believe that is about 37 to 38 inch high.

We camp with a teardrop trailer and biking with our Rad mini 4 and Rad step thru are a great addition to the trip. One concern we had was security and rain. Beside locking we do like the idea of out of site out of mind and we found that a Char Broil grill cover works very well to cover both bikes right down to the ground and it has kept the bikes dry in a good down pour. We park both bikes together lock them and then cover . The cover fits like it was made for bikes and easy to put over and take off. Char broil 5 burner XL about $52.0 in big box store. 72"x 44"