That isn't me loading it by myself, that is from their website, but I have a Silverado HD with 35" tires, so it is equivalent to the Hummer... Maybe higher since you can lower the Hummer with the air suspension... I can load my KTM by myself, but it does require a step (I use the bike stand)... I do not think that I would want to load something larger like a Harley or sport bike by myself... But my plan is to use this method when I get my Hummer..