Is it ok to use the recumbent exercise bike with an inguinal hernia?

Probably OK: Aerobic exercise should not worsen an existing hernia or increase the probability of a complication. In contrast, weight lifting and aggressive core exercises may cause a hernia to enlarge. In general, if the activity causes groin pain, it is probably best to avoid that activity or get the hernia repaired.

Depends : Base your activity on your symptoms. No symptoms, ok to proceed. See a general surgeon to find out more details about your case.

Depends: As long as you're not increasing your abdominal pressure during the exercise to the point of worsening your pain.