Barnett Hydraulic Clutch Spring Conversion Kit For Harley This kit from Barnett Performance Products allows you to convert stock diaphragm spring to six coil springs that provides a more progressive, controllable experience. Billet pressure plate and springs are included as it will replace the stock pressure plate and spring. Three different spring pressure options make it ideal for stock to heavy duty applications. Features Converts your diaphragm spring clutch system to six coil springs CNC-machined billet pressure plate Ideal for stock to high-performance motors Allows for more precise adjustment and smoother operation Increases the holding capacity of the clutch Includes two sets of coil springs to provide three different pressure options Utilizes the stock clutch hub, shell and clutch plates