I have run Amsoil in my motorbikes since 1985. They make a 10-40 and a 20-50. It is compatable with wet clutches which most motorbikes have. I have run it in drag bikes, street bikes, dirt bikes, cars, boats, chainsaws, and lawnmowers. Good stuff. There are also other great oils out there and you will find that no two folks run the same oil and it is a nasty subject and most motorcycle forums have banned oil threads. So pick an oil that is rated for you bike and application that is eASY TO FIND AND DOES A GOOD JOB.

This is still the USA and we get to make our own decisions except when Dennis says we can't on this forum.