WEIGHT : +- 144 GRAM

DATES BACK TO THE MID 70's - EARLY 80's

OUTER PLATE AND CLAMP HAVE THE SIMPLEX LOGO

INNER PLATE IS MARKED ON THE BACK : BREVETé S.G.D.G.  MADE IN FRANCE

ALUMINIUM CLAMP HAS THE ALLEN KEY BOLTS

CHROMED STEEL PLATES

The SA 12 is vey similar to the SA 02 with just 2 slight variations. First, the metal arm which carries the cable stop is slightly different in that the cable stop element is directed to the front of the derailleur (to the backside with the SA 02). Second, the SA 12 has one additional adjustment screw and a slightly modified housing to build a port with a threading for that screw. It is located just underneath the red oil housing cap. With this additional screw its is possible to adjust/restrict the derailing cage horizontal movement in both directions (the other adjustment screw is the horizontal M3 screw at the opposite side of the housing. Generally, the SA 12 appears much rarer as compared to the frequently see SA 02 (velobase)