I am guessing that I was towing about 3,500lbs (give or take 500) - some glass, a kiln, a compressor and pressure pot, furniture, and display stuff. I could tell I had some weight, and without any kind of equalizing, it bounced some, but I had more than adequate power. I could have towed another three thousand lbs with proper equalizing, and still have adequate power to move with traffic. If I were going to make a habit of towing heavy loads, though, I would split the exhaust, since I could hear the pipe wheezing any time I accelerated.