Cyclemaster Serial Numbers
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1950 - 0 - 5500
1951 - 5500 - 36000
1952 - 36000 - 90000
1953 - 90000 - 123000
1954 - 123000 - 145000
1955 - 145000 - 154000
1956 - 154000 - 159000
1957 - 159000 - 163000
1958 - 163000 - 165000
1959 - 165000 - 166000
1960 - 166000 - 166500
1961 - 166500 - 166600
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When changes were made...

73500 - 25cc
73501 - 32cc
 
102900 - Amal Carburettor
102901 - Bec Carburettor
 
76750 - Wipac Pacy Bantamag
76751 - Wipac Series 90
 
50000 - Freewheel
50001 - Coaster
 
102604 - 26" x 1.5"
102605 - 26" x 1.75"
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