Part #N0348.1ADYT is the black one for the CityX, $19.25 is list. I tried to find it here but they don't seem to have it. Cut and past # then google it. bikerbobsstore.com has it now for $15.40
yea I painted mine but masking that number plate is harder than it looks, ended up trying to clean the accidentally painted edges with acetone, lifted the paint on the red number 12 and called it quits.