zombie thread, this, but I have just obtained a complete Dynatech MTB which is a dead ringer for Torslanda's red frame upthread;
Same frame as above, identical in every way AFAICT, including the daft 'chainstay bridge that isn't' (funny how that never caught on, isn't it not...
).
However mine has a six element frame number, 'Fxxxxx' (where x are numbers). The components on the bike appear to be original to the bike, and comprise a near complete 'smokey' STX-RC 7s groupset, (including cantis) with a manufacturing date of December 1994. This suggests the frame as having been manufactured in 1995.
If so, I'd propose that these RSP frame numbers perhaps go
F = 1995
G = 1996
H = 1997
I = 1998
J = 1999
etc. I guess it is possible that they missed out 'I' because it looks too much like '1' , but until someone is able to confirm that or not we won't know for sure.
Interestingly my machine also came with a couple of unusual parts that I had not seen before;
1) an exact colour-matched welded steel stem; 130mm long, nicely TIG welded.
2) a set of Ti handlebars; flat with a ~3-degree crank, made from plain gauge 7/8" tube with an aluminium centre sleeve.
This is one of the lightest OTP steel MTB frames I have come across, and rides well. Unfortunately my frame also has a rather ominous-looking crack in the seat cluster....
.... so the welding set is coming out to play soon....
This will also necessitate at least some paint. Does anyone have a good match for this metallic red colour?
cheers