Piaggio Vespa Flywheel Ducati (Italian up to 2011) PX, CosaPiaggio Vespa Flywheel Ducati (Italian up to 2011) PX, Cosa The Chinese ignition was first introduced when the revamp of the PX was introduced in 2011. The Flywheel is includes a Starter Ring Gear, which in turn meshes with the Starter Motor, and starts the scooter. This is fitted to the Vespa models running Ducati Ignition (blue box) with E Start flywheel ca.: 2400g For vehicles produced from 20 05 2011 al 30 06 2011 and from 31 07 2011 Comparison