VanguardontheLav said:
I suspect it's not going to be any help Lothar!
--
Dick
I fear you are right... :-[
thanks to all for your support!! Let me sum up what we know now...
-RGS, RGA and SFC share obviously the same frame, same number-ranges etc.
-RGS/1 was introduced somewhere between 2200 and 2300 and used for RGS, SFC and Corsas
-at least one frame (for unknown reason) has /2
-obviously we did not find a /3 Frame yet
-highest number of the RGS/RGA/SFC frames was something in the 34xx range
-differences between RGS/RGA and SFC frames are mainly: Mounting point of the torque arm for the rear caliper, mounting point for the brake master and - obviously the color...

-No SFC frames do exist without /1, which means also that:
-No SFC Frames have only RGS stamped on
-No SFC frames do exist with /2
-No SFC frames do exist with /3
-However, /1 is not solely used for the SFC, it was also used for RGS and RGA as well as for Corsa's (rare to be found, as almost none were produced anymore when the SFC hit the market)
-SFC's where delivered with different dashboard, such as with Smith, white Veglia and - rare but existing - with ND instruments
-the Witt-Prototype seams to still exist but obviously no one of the Forum does have it (OR???)
-the factory Prototypes seam either to have been dismanteled or sold to collectors and are also at a currently unknown place, frame-numbers unknown
-one factory pre-series bike was send to Uwe Witt with frame number 0001 (currently in my garage)
-The number of SFC's produced is somehwere in the Range of 450 - 550, most likely to be around 520
-first batch was red only, equipped with Marzocchi symbol on the rear and M1R on the front, cast wheels only and were produced in 1985, delivered end of 1985 and partly still sold in 1986.
-first batch started somehwere in the range of 279x and went up to 31xx.
-Second batch starting around 32xx, must have been produced in 1986/1987, partly with the frame-modification at the headstock (for sure over 3.300 I would say)
-somewhere in the second batch, the seat-unit was modified. First series have a different shape cut-out for the rear-tyre than 2nd batch
Anything else I forgot?