Muller Motorcycle AG MUL-120-60 Hydro Clutch for Reduced Effort Hydraulic Slave Cylinder Assembly on Touring 17-20/CVO 17-20/Softail-S 2017Painful fingers when pulling the clutch belong to the past forever with the clutch relief Hydro Clutch. After the enormous success of the Power Clutch, it was only logical to develop a relief also for the hydraulic clutches. Because here, too, the original clutch is not always easy to pull The Mller Hydro Clutch is a clutch relief specially adapted for hydraulic clutches of Harley Davidson Twin Cam and Milwaukee Eight models. 35% relief on Twin Cam