The Ducati Evoluzione Clutch Slave cylinder is our recommended slave upgrade for all ducati models 1992 and up. Top selling Ducati Slave Cylinder on the market! This is one of our top selling Ducati products for good reason. Your stock Ducati slave cylinder will fail, usually in the worst of moments. Signs of a wearing clutch slave include, very grabby clutch, slow or fast loss of brake fluid, noticeable amounts of guck accumulating under your front sprocket, total loss of any any clutch line pressure. Perfect performance with this clutch slave upgrade, available in black, silver or gold. Note: 28.5mm offers 25% reduction in lever effort, the 30.5mm offers a 35% reduction in lever effort. 30.5mm