Adjustable cam sprocket assemblies allow the cam timing to be adjusted on models with factory pressed on sprockets. The CNC machined adapters are pressed on the cams in place of the stock sprocket. The slotted sprockets can be adjusted. All assemblies include two adapters, adjustable sprockets, and four bolts.

These sprockets and adapters fit all the years of the Hayabusa. Remember to mark the camshafts and stock sprockets so that you can install the adapters in the proper place. A great way to dial in the horsepower to your riding style.