fˈɪfti sˌiːsˈiː ˈæktʃuːəli fˈoːɹɾi nˈaɪn.fˈaɪv sˌiːsˈiː ˈɛndʒɪnz ˈɔfɚ ðɪ ɐdvˈæntɪdʒ ʌv bˌiːɪŋ klˈæsᵻfˌaɪd æz ɐ mˈoʊpɛd ɔːɹ skˈuːɾɚɹ ˈɛndʒɪn, ænd mˈɛni mjuːnˈɪklᵻɾiz duːnˌɑːt ɹᵻkwˈaɪɚɹ ɐ spəsˈɪfɪk mˈoʊɾɚsˌaɪkəl lˈaɪsəns tʊ ˈɑːpɚɹˌeɪt ɐ vˈiəkəlz wɪð ˈɛndʒɪnz sˈaɪzᵻz ʌv lˈɛs ðɐn fˈɪfti sˌiːsˈiː.
50cc (actually 49.5cc) engines offer the advantage of being classified as a Moped or Scooter engine, and many municlities do not require a specific motorcycle license to operate a vehicles with engines sizes of less than 50cc.