Standard viscosity 20 weight fork oil for a high quality replacement. This is the ''Screamin'' Eagle equivalent oil thickness. Features anti-foam & scuffing dopes; minimizes friction and wear. High quality fork oil; specially developed for use in stock and aftermarket H-D V-Twin models. Our oil engineers used quality base oils blended with the right additives to achieve the lubrication and damping characteristics that can be trusted to give the ultimate protection for your bike in all circumstances. Proudly engineered and manufactured in The Netherlands. Note: For a less ''damping effect'' a thinner oil; like SAE 15 (H-D type E equivalent); is advised. SAE 15 is available as 941765.