Why not, like it in the Valk -why not the FJR?!

I like Amsoil too and use it in my FJR and my wife's new 2005 Triumph Sprint ST (since new) because Triumph says yes to synthetics from day 1 and actually spec's only synthetic oil for the bike.

Go for it.

BTW, I talked to an Amsoil Tech -said the new MCF is specifically formulated to excel in motorcycle applications, where the old AMF oil (it is replacing) worked better than most and was 100% safe for bikes -it was not designed specifically for motorcycles like th enew MCF.

Reasons to not go Amsoil -Mobile1 bike specific is mre readily available while travelling far enough that oil changes are required on the road and is also a very good oil.