What oil weight is used in Harley?

I have 2006 Sportster XL1200 what oil weight should I put in?What oil weight is used in Harley?
20W50.What oil weight is used in Harley?
Harley recommends:


10W40 below 40 degrees F.


20W50 above 40 degrees F.


50 above 60 degrees F.


60 above 80 degrees F.





20W50 is a good all around choice for most riding, and is what they are shipped with from the factory.
Well I would ask a Harley mechanic before I put something in my HOG that a total stranger says is good - but 20w50 is correct according to my manual.
Amsoil Synthetic Motorcycle Engine Oil 20W50 is the best and ALL the Harley Owners use Amsoil
In both of mine ('80 Sporty and '48 Panhead) I run 50 in the Winter and 60 in the Summer with 75/90 in the case.
20w50
Harley uses 50W oil in there motors, go to your dealer and let them service it for you.
50 wt.
90.





You can use thinner oil but it will leak out much faster.





And thats the truth.