Clutch Drum, Ergal, CNC Machined, 2009 Version

Clutch Drum, Ergal, CNC Machined, 2009 Model. Latest version with additional surface hardening treatment. The drum comes with the stud bolts pre-installed as shown in pictures.
PAY ATTENTION: pictures are taken from the standard model. 2009 model is quite similar, but has a smaller diameter.

This component is part of the clutch assembly installed on SGM shifter engines since 2009. The 2009 clutch assembly is smaller in diameter, weights less, hence ensures quicker accelerations especially in low gears due to the reduced momentum of inertia.
The 2009 model clutch assembly can be installed also on engines manufactured prior 2009, the single components instead (drum, basket, driving discs, driven discs and pressure plate) cannot be mixed with the components of the older model hence if your clutch is previous model you can't use 2009 parts as spares unless you replace the whole assembly.