Clutch Drum X30 solid type

INFO TECH N.  7As recently happened with the KF engines, we will introduce the solid type clutch drum on the X30 engine.

The modification does not affect performance and is compatible with all version. The solid type clutch drum avoids accidental leaking of chain lube on the clutch hub masses.

The homologation form of the X30 engine will be updated with the new component and the previous version will

remain valid.