Reminds me of riding with my son then 4 or 5 on a 79 Kaw 1000LTD. He would doze off when my wife and I would go lake riding or on a poker run. I solved problem with black rubber tarp strap, I hooked one end in my jeans belt loop and wrapped around him then hooked in my opposite loop. My wife had a 80 Kaw. 250 LTD and the older son,8 or 9 did not nod off, so he rode with her. Looking forward this summer to taking G-son ,11, on new 08 Nomad,as soon as all the durn ice and snow melts,and I have a serious re-learnining month or so to remember to how to ride!yes, you can take a passenger, and yes, there are belt type systems available. do a search on the net and see if you can find any. As I understand, some of them have handle attached to the side so that the person on back has something to hold onto too.
All bikes have a weight limit - usually about 300, 350 pounds some a little more. There is nothing wrong with riding a passenger. Before bikes got so big, we would ride our 250's 2 up all day long - now these bikes are supposedly too small - BULLSHIP. But remember that riding 2 up is a learned skill so practice, practice, practice.If I get a 2008 Kawasaki Ninja 250r can it hold a passenger on it?