Looks like I may have sparked some debate....It doesn't take a rocketologist to see that there is no way known in basic law physics that the clutch can be perfectly balanced with the cut out and bolts on one side. It makes sense to counter weight!
What really bugs me is the miss alignment from engine drive shaft to gear drive shaft...has anyone else noticed this ? They are way off being horizontal to one another!
My mate has modelled the entire SB45 and it's way off.....surely this causes vibration issues. Sorry but we work to 3 decimal places and little things like this mess with our heads.
Cheers