Personally the HD is like a tractor (in a good way!) not made to pound into the dirt. With all the technology/metallergy infused into it, it is still a high stress motor with intensional "loping" "offbalance" cadence and when used as a dragster is certainly not going to last with two heavy slugs the size of your coffee cup slamming up and down between your legs. Kinda refresshing to see Kemo reflecting my thoughts on the subject, coming from the metric side of the house...(don't beat me up)...I prefer my Harley, because the heart that beats inside just "rocks".