I don't know about that I know of 2 owned by friends of mine that ride them all the time one is a big V twin the other an inline 4 and they both run fine. There is another guy here who has both an old Scout and an old Chief and he rides them both. I don't know the guy really so I don't know how much work he does to run them but I know he does. I see him from time to time.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!