ðə tˈiː wˈʌn z ɡˈɪɹbɑːks ɪz ɐ sˈɪksspˈiːd hjˈuːlənd siːkwˈɛnʃəl, mˌeɪd əvə mæɡnˈiːziəm ænd kˈɑːɹbən kənstɹˈʌkʃən, ðæt hɐz ɐ vɚɹˈaɪəɾi ʌv ɐvˈeɪləbəl ɡˈɪɹ ɹˈeɪʃɪˌoʊz, ænd jˈuːɾɪlˌaɪzᵻz ɐ nuːmˈæɾɪk ˈæktʃuːˌeɪɾɚ tə ʃˈɪft; ˈeɪbəl tʊ ˈʌpʃɪft ɪn sˈɪksti mˈɪlɪsˌɛkəndz ænd dˈaʊnʃɪft ɪn θˈɜːɾi mˈɪlɪsˌɛkəndz.
The T1's gearbox is a 6-speed Hewland sequential, made of a magnesium and carbon construction, that has a variety of available gear ratios, and utilizes a pneumatic actuator to shift; able to upshift in 60 milliseconds and downshift in 30 milliseconds.