Akwatunan gearbox da na'urorin ɓoyewa masu daidaito don injinan DC marasa gogewa. Akwatunan gear na duniya daga Φ16mm zuwa Φ65mm, na'urorin ɓoyewa na gani da na maganadisu don ra'ayoyin matsayi. Ya dace da injinan ɓoyewa na jerin X-TEAM BL.