Here is what the new PowerSport used.
   Paul Lamar

 Wasn't Powersport using this in place of the counterweight as well?

 Chris Cosman

 Yes.

 Paul Lamar

Hi Paul,

What does Powersport use the ring of holes just inside the ring gear for.
Could be used for the CAS and timing of injection and spark. You may need a
couple of other holes for the firing position.

Dale Davies

Probably to save weight :) Maybe I don't really know. Makes sense for
an optical timing sensor. Perhaps a VR sensor will work there. Not sure.

Paul Lamar