bike vs pedal cycle

bike

verb
  • To ride a bike. 

  • To travel by bike. 

  • To transport by bicycle. 

noun
  • A crowd of people. 

  • A hive of bees, or a nest of wasps, hornets, or ants. 

pedal cycle

noun
  • A vehicle powered by a person by means of pedals, such as a bicycle, tricycle or quadracycle. 

How often have the words bike and pedal cycle occurred in a corpus of books? (source: Google Ngram Viewer )