The Nut, Self-locking M6 is the cheapest item from this partsfiche.
The 018 - Impianto Elettrico Sinistro assembly is constructed from several parts from which the Voltage Regulator is the most expensive.
Parts such as the 018 - Impianto Elettrico Sinistro: Hose Guide, Sensor, Pressure, Rubber Pad, Tube Vertical are included in the Superbike 2016 My16 (superbike Panigale R) D220-00016 018 - Impianto Elettrico Sinistro parts fiche.