Piaggio Flywheel for some Vespa GTS 300, GTV 300 and Piaggio BV300 . Has Three Bolts. The one with Six Bolts is 1A016720. They are not interchangeable. 

This is a Genuine Vespa Spare Part imported from Italy.

Does Not Fit all Vespa GTS 300 models. It is your responsibility to make sure this is the part you need before you order it.