It does say "Your motorcycle does not need oil additives. Use the recommended oil."
And not to use oils with graphite or molybdenum additives. They may adversely affect clutch operation.
So I guess its motorcycle specific oil I have to use? Motul 5100 I see is 10W40, which I suppose is better than 10W30? (more temperature tolerance?)
5100 comes in many different viscosities, as does any brand of oil. I use 5100 10W50 in my street bike and 10W40 in mine and my son's dirt bikes.