... , extensive; 3.Low noise,durable of using 4.Safe & environmental Stepless Variator Head Mainly by the compaction of active wheel device, the ... (I = 42-100) : 2-23.5 r/min MB speed variator part type:MB02, MB04, MB07, MB15, MB22, MB40, MB55, MB75 ... MB speed variator lubricating and replacement:1, MB transmission gearbox, please choose (Ub ...