I'm an Amsoil dealer and the rating for the Advanced Synthetic Motorcycle Oil (Product code MCFQT) 10W40 is listed as API Service SG, SL/CF, JASO MA/MA2.
The American Petroleum Institute lists the SH category as being Obsolete per this website:
http://www.calsci.com/motorcycleinfo/API.html
I believe the SL/CF rating will exceed the SH requirements, but I sent a question in to Amsoil to confirm.
