Sprocket Presto Reinforced 38 teeth 4 hole 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, Zündapp A 25 Automatic Type 460-01, 460-02