I'm on the verge of obtaining an old SRM V pro crank but it has no headunit. I know from research that the PCV are pretty expensive when new and hard to find second-hand on there own. To spend out big money getting a unit for these older cranks probably wouldn't be wise.
I'm pretty good at mending things so am after anything, be it damaged, waterlogged, broken, or something older which is past it's service life, anything really. If I could get my hands on a couple of broken units I'm sure I could get things working again.
