This is the best mechanical advancer made for Harley-Davidson Big Twins and Sportsters. A perfect combo with our Made in USA electronic ignition. The Comp Master™ advance unit was created to not only upgrade a points style ignition, but also to enhance well made electronic ignitions and to convert electronic advance ignitions back to the simplicity of a mechanical advance ignition.
The base is made of stainless steel so it won't rust. The weights are completely saturated with a specially formulated polymer coating that protects it from heat saturation, reduces friction, strengthens the component and makes it more efficient.
The kit includes the center bolt.
