Nut of exhaust elbow, ZINC - ČZ 450-475 Can be used for: ČZ 125 type 453, since 196- ČZ 125 type 473, since 196- ČZ 175 type 450, since 196- ČZ 175 type 470, since 196- ČZ 250 type 455, since 196- ČZ 250 type 475, since 196- ČZ 175 type 502 scooter, ear 196- ČZ 175 type 505 Manet S 100 scooter Tatran S 125 scooter