I agree, depending on what you mean when you say "off-road". Some people would simply be referring to anything off the pavement, in which case it might be fun on fairly smooth caleche roads. But if "off-road" means single track or even dual track trails in the rough, then three wheels are basically a disaster. As daveinva says, you hit every rock, bump, root, even trees. I have ridden one of the old Honda "Big Red" three wheelers in the dirt and after twenty miles or so of basically single track trail, I was hammered and the three wheeler wasn't in much better shape. Not fun.
Cotton