ˈɑːɹɾɪkəl nˈaɪntiːn ʌvðə fɹˈiːweɪ ænd ɛkspɹˈɛsweɪ tɹˈæfɪk kəntɹˈoʊl ɹˌɛɡjʊlˈeɪʃən zˌiːˈeɪtʃ:tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ tʃˈaɪniːzlˌɛɾɚ, ɪfˈɛktɪv ˌɔn wˈʌn dʒuːlˈaɪ tˈuː θˈaʊzənd sˈɪks, mˌeɪks ɪɾ əfˈɪʃəli pˈɑːsᵻbəl tʊ ɐlˈaʊ mˈoʊɾɚsˌaɪkəlz wɪð ɐ sˈɪlɪndɚ kəpˈæsᵻɾi ʌv mˈoːɹ ðɐn fˈaɪvhˈʌndɹɪd fˈɪfti sˌiːsˈiː ˌɔn sˈɜːʔn̩ ɛkspɹˈɛsweɪz.
Article 19 of the Freeway and Expressway Traffic Control Regulation (zh:高速公路及快速公路交通管制規則), effective on 1 July 2006, makes it officially possible to allow motorcycles with a cylinder capacity of more than 550 cc on certain expressways.