wheel swap cad cnc lazer reluctor for speed sensor

[pekingduck]

   
I would make a thin steel disc that covers the CB500X's rear ABS pulser disc and has 3 holes to align with the one from the CB1100.  You could braze. silver solder, rivet or bolt them together.  
You would have to assemble the wheel into the swingarm first to determine the critical spacing of the pulser disc and the pickup.  Then you could then, with a little trial and error, make 3 identical length spacers (plastic, aluminum, steel) to fit it.  Once the proper height is determined, you could make the final spacers of steel, thread them then braze/silver solder into place.