A Ninja 500R has a 500cc engine. The R means racing it is just a marketing symbol.
It is said that the Triumph Street Triple R is the best motorcycle out there.
If the motorcycle is a Kawasaki, then likely that's the model.
They would be the "Hells Angels" motorcycle group.
2 percent motorcycle patch means you are one of the 2% of Americans that are licensed Motorcycle riders.
Motorcycle School? Do you mean a motorcycle mechanic? Depends if you go to school full time or part time.
What does the number 7 mean in the motorcycle club world
cubic centimeters
Do you mean Ducati? A Ducati is a motorcycle
The R R means the bike is a street legal copy of a Road Racer. Some call it a Replica Racer because it is a "Replica" of a motorcycle built for racing. I call em rice rockets cause I'm raciest.
If you're using batteries, my best guess is this being caused by your stator and R/R.
Cubic centimeters.