yes it is, in feb. when the snow was 6' deep i had the local shop put a S&S
cam in my '09 h-d trike. and went on a 900 mile trip last week from northern indiana to missouri, and the 6th gear was really incredable. 39-65 degrees.
but as we all know tith the rain we've had i wantd some trike seat time before i get into lawn-mower seat time.
but when going thru st. Louis, the redline dealer in st. charles said they didn't carry the 20x60 motorcycle oil. aalso said they might have stop produceing it
(don't know if thats true.)