I have an M37, an M35, and an M35 bobbed. My M37 has 11.00x16 michelins, a must in my opinion (see my albums). I love driving the M37 however, I would not take it on the hiway again. I was getting around 7mpg, no seatbelt, and a top speed of 54. I could tell the motor did not like it, seems...