Frame Numbering

This is a listing of known frame numbers at July 2011

122, 161, 235, 760

1279, 1867, 1955

2462, 2555, 2626, 2804

3091, 3198

4000, 4006, 4105, 4166, 4203, 4349, 4566

5123, 5130, 5604, 5779

5794 with engraved seat top eyes – thought to be 1976 or later

5796, 5820, 5867, 5933

6069, 6123 known to be 1979, 6143, 6170

6184 known to be late 1979

6222, 6279, 6282, 6284, 6370, 6371, 6453, 6512, 6722, 6761, 6788, 6796, 6799

6805

Frame Identification

Most lugged MKMs were built with either Prugnat or Bocama lugs - see Richard Sachs website – for lug details - All Ultimates were lugless but are, of course, easily identifiable

 

Frame Dating – THIS IS ONLY VERY APPROXIMATE

Assuming that production was spread evenly over the nine years of production with only four months production in 1972 and six months production in 1980 the average frames per month are 75 per month, this would give the following ranges per year :

1972                        001 to 300
1973                        300 to 1200
1974                        1200 to 2100
1975                        2100 to 3000
1976                        3000 to 3900
1977                        3900 to 4800
1978                        4800 to 5700
1979                        5700 to 6600

5705 known to be early 1979, 6184 late 1979

1980                        6600 to 6805??