10w40 will do just fine.
The oil capacity of a 2000 Honda Shadow Spirit 1100 is 3.3 quarts. This is equal to 3.1 liters of oil.
a Honda takes premix and can take 4 strike motor oil for tranny oil
10w40
Counter-clock wise.
10w40
According to the manufacturers, this bike will use a 10-40 W JASO-MA or MA2 oil.
10w40 will be fine.
3.3 quarts
10w 30
Water cooled.
4.5 qts