How often do harley Davidson ignition modules go bad?

Harley-Davidson ignition modules typically have a long lifespan, but they can fail due to factors like heat, vibration, or electrical issues. On average, they may last anywhere from 30,000 to 100,000 miles, depending on the model and riding conditions. However, some riders may experience issues sooner, especially if their bike is subjected to harsh conditions or modifications. Regular maintenance and checks can help identify potential problems before they lead to module failure.