Wait a minute, your friend Elise is 6'9"! That's taller than me! Speaking of pillions. I had a Honda Camino moped as a teen. It refused to die, whatever I did to it. It has a centrifugal clutch, no variable gearing and was stated at 1.8hp. yeah, bicycles would sometimes overtake me. Well, one day, I had the fantastic idea of riding 10 miles with my friend Bruce on the back. Maybe 120lbs. Well, every time I pulled away from a stop, the **** thing would pull a huge slow motion wheelie. It was hilarious. I had some control issues, due solely to the amount of laughter that was happening.