Barnett Ducati Clutch Spring Kits All New!! Our all new clutch spring kit for the Ducati 6-speed dry clutch models is designed with form and function in mind! Included are six heavy duty clutch springs made from chrome silicon, shot-peened and heat-treated, then powder-coated gloss black for an attractive, long lasting, and durable finish. The end result is great looks and reliable performance with no noticeable increase in lever effort. To complete the kit, we also include six stainless steel screws and six billet aluminum spring cups