Sprocket with 13 teeth for Zündapp M 50, Mofa 25 Bergsteiger, ZA 40, ZA 25 Type 460-02, A 25, ZB 22, ZD 10/30, 442 Mofa, ZR 20 Type 447-02 and others. For installation, the factory-cast tuning lock must be removed. Tuning part for racetrack use, not permitted in the area of the Road Traffic Licensing Regulations (STVZO), operating license expires. Adjustments to timing, ignition, and carburetor tuning required. No warranty on tuning parts. Returns only accepted if undamaged and in original condition.







