On the steering damper, websites call for an SD 021, but the kit manual calls for an SD 001. It has 3mm more stroke. One of the parts to mount an SD 001 (collar) is no longer in production, but I've a spare if anyone needs it.
Really interesting about the wheels. As far as the pistons and crank goes, were you able to verify that the pistons are higher compression? I'm really curious about the differences. I'm wondering also if the crank was modified for the crankcase, or if it was made stronger / lighter in key areas.
So many questions!!