[Gaz64]

Hi Chris,

Can you show pics of the factory flywheel on it's own?

I would consider the much lower height of the centreforce assembly as to the SOLE reason your pedal was rock hard. The throwout would have been at the end of it's mechanical travel.

I'd be requesting some fixup from where your bought the centreforce clutch and flywheel from.

I can't see it being a case of adding a 25mm spacer under the throwout, you might not be able to bleed the system.