Sprocket Esjot Reinforced 42 teeth 4 hole Black for Hercules Prima 1, 2, 3, 4, 5, 6, MP MF M HR Hobby Rider, P MX SX, Optima Pronto, Presto, Garelli Cross 40, KTM 505 Automatic, 2 speed, Zündapp A 25 Automatic Type 460-01, 460-02