I'd say Motul 300v 10W-40 would be perfect.

Having said that - i used 5W-30 for my 1st year without any problems - only upgraded to 10-60 for Dutton, but will be going 300v 10-40 for the rest of the year.

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MY09 Evo X - 1.6bar@3500rpm - got lag?
Barbagallo - 56.03 (S); 1:08.09 (L)
Collie - 50.77
Possibly the most under-driven Evo X in the world??