Nihilo has developed a stainless steel Deck Tool that is a fraction of the cost of the O.E.M. special tool. The O.E.M. tool retails for over $94.00 while the Nihilo Concepts tool is only $14.99. The stainless steel is durable and strong and will last for many years. Nihilo uses a laser to precision cut each tool; the laser assures that they are exact copies of the O.E.M. specification and will work on your bike perfectly every time. You must have this tool to properly set the deck height and power valve - if your head is not set up per factory specification, you run the risk of stator failure and will have an improperly tuned motor.