Hey Chris...got good news and bad news...
located a nondrive sensor unit in the office and taped it on at the recommended distance from crank spindle axis...then I threw it in my 2014 9srs frame:
That tiny bit of clearance vanishes under very little load...I know we don't generally apply big pedaling loads into the crank arms at this point of the pedal circle, but I can't recommend installing a Pioneer power unit on the Speed Concept. Too much risk that it will rub. Sorry!
Carl Matson