I like my horse power on four wheels instead of two so I haven't had first hand experience with motorcycles. My roommate was into motorcycles including a Gullwing and a large BMW touring bike. As for the 911 pounds, that was what was posted on youtube so I don't have direct personal knowledge that the weight is correct. Last but not least, if I had that much work done on my back, I would be very very careful with it. I am not even sure I would want to risk a bike injury under those conditions however I have never had the fever so I would be conservative in my risk taking.