Which one of these dirt bike oil's should I get?

Question

http://www.yamaha-motor.com/sport/yamalube.aspx

Include the 10W-40 or whatever it should be, I'm in italy so the weather is about the same as the east coast. Cold but not freezing, and in summer hot but not scorching. I have the 2007 ttr 125 le model which is a 4 stroke.

I keep getting different answers when i ask this so I've narrowed it down, please help i need to ride.

Answer 1

The best oil there is  ,,,and the name does not matter,,

full synthetic oil,,, but mobile is the top.