STATOR, Ø20 FLYWHEEL MACHINED FROM BILLET, REGULATOR AND CONTROL UNIT The super-lightweight rotor has an internal steel bulkhead that protects the magnets and stator in the event of crankshaft failure. - The ballasts machined from solid, not from a tube, are perfectly balanced and galvanized. - The flywheel cones, machined from solid, are designed for the use of original Piaggio extractors to simplify disassembly, the surface is nickel-plated to resist atmospheric agents and corrosion, keeping the internal thread always in perfect condition. - The nylon cooling fan has an increased fin profile to cool the thermal unit more even in the most demanding conditions, increasing the air flow by 20%. - The die-cast aluminum stator support with a graduated scale that allows even less experience.