I have a Kubota B2100 with a curtis cab with hard doors. I probably have trailered it over 500 miles, over the years without any problems. I always pull it on the trailer but I don't think it should mater. I do bungee the doors shut. One time going down some rough dirt roads one of my doors came unlatched. Thats when I started using bungees to hold the doors shut. :thumbsup: