560-0244 Diaphragm clutch spring

When you are building a high-performance motor, the stock clutch spring is often the first thing to give up. This S&S heavy-duty diaphragm clutch spring is a serious upgrade, providing 380 lbs of pressure. That makes it roughly 25% stronger than the original equipment and puts it right on par with the Screamin' Eagle heavy-duty options. It is designed to fit 1998 to 2017 Big Twin models, though you should note it is not for 2014 to 2017 models equipped with an Assist and Slip clutch or 2017 Milwaukee-Eight engines. If you want to ensure your power actually makes it to the rear wheel without slipping, this is a reliable way to beef up your primary.