Looking to upgrade the throttle response of your motorcycle and improve the overall performance and reliability of your Harley? In our opinion this crankshaft sprocket is a must change item when you are upgrading your camshaft(s). Why? Every time that we touch a factory powdered metal piece it has a tremendous amount of free play. We have seen as much as 4 degrees of play during in shop testing. To get the most performance out of your bike you need accurate timing events. This fueling crank gear is precision fit piece that ensures that your crankshaft and camshaft(s) are in perfect harmony together giving you years of reliability and smiles. In our shop we will not do a cam job with out this piece. You shouldn't either.