Speedometer (100km/h), "K black base, No.7 - ČZ 125/150, ČZ 501 Can be used for: ČZ 125 B since 1947 ČZ 125 T year 1947-1950 ČZ 125 C year 1950-1952 ČZ 150 C year 1950-1953 ČZ 150 C Rikša, year 1951- ČZ 175 type 501 scooter, year 1958- ČZ 175 --- 1935-1946 ČZ 250 type Sport--- 1937-1947 Manet 90, since 1948