If it carries what Harley specs for your bike I'd use it.I've used all the "big name" oils in the last 10 years and truthfully I didn't notice any advantage over regular oil. I run Valvoline 20/50 mc oil. Just yesterday I checked the oil temp after 2 hours of slow speed riding around town, with some idling thrown in. Now, my bike is a '99 w /fi the oil temp was 218f, with 2 different thermometers.It was 92f and humid. Gets changed at 4500-5000 miles. Works for me, and if Klotz was available here, and priced close in price, I'd try it.,,,