Pinion steel 11 teeth 13.5mm for Zündapp, GTS, C 50 Sport, Combinette, CX, Hai, KS, Falconette, R MG00009506
Sprocket with 11 teeth for Zündapp GTS C 50 Sport Combinette CX Hai KS Falconette R 50, suitable for types 510, 511, 517, 561, 529, 448, and other Zündapp models with a toothed mount (13.5mm).