bᵻfˌoːɹ ðə pɹˈɛvələns ʌv ˌɪnɛkspˈɛnsɪv tʃaɪnˈiːz ˈɛndʒɪnz, ɪndˈʌstɹɪəl bɹˈɪɡz ænd stɹˈæʔn̩ ɔːɹ tˈɛkəmsˌeɪ hˌɔːɹɪzˈɔntəl ˈɛndʒɪnz wɪð sˌɛntɹɪfjˈuːɡəl klˈʌtʃᵻz ɔːɹ kəntˈɪnjuːəsli vˈɛɹɪəbəl tɹænsmˈɪʃən wɜː mˈoːɹ kˈɑːmənli jˈuːzd tə tɹænsmˈɪt pˈaʊɚ tə ðə ɹˈɪɹ wˈiːl.
Before the prevalence of inexpensive Chinese engines, industrial Briggs & Stratton or Tecumseh horizontal engines with Centrifugal clutches or Continuously Variable Transmission were more commonly used to transmit power to the rear wheel.