I would say Amsoil 20w-50 Syn High Performance Motorcycle oil would be a better choice, but then again I am biased. The following is Amsoils writeup on the 20W-50 oil Motorcycle oil.

Tom

Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety. Benjamin Franklin, US author, diplomat, inventor, physicist, politician, & printer (1706 - 1790)