Chuck and Richard seem to be of the opinion that "4/10 Record" refers to the guage/thickness. However I do not see the logic. Record tubes are 0.5 mm. for triangle tubes and all stays, and 0.8 for the head tube. How do you derive at the "4" in "4/10" pertaining to thickness? I was also told by Colnago that Record tubing was specked in only certain tubes on the frame, not throughout. So this is why I believe that "4/10" refers to how many Record tubes were used. Please submit your input, because I certainly do not want to share incorrect info.
Chuck Schmidt wrote:
> Hi Marc,
> "4/10 Record" refers to the thickness of the tubing, not the number of
> tubes in the frame...
> Chuck Schmidt
> South Pasadena, California
> http://www.velo-retro.com (list of t-shirts on site)
> Marc Boral wrote:
> > Hi Dale and CR,
> > Most of my knowledge about earlier Colnagos comes from older Colnago literature,
> > but some comes from having 25-30 Colnagos in my collection :-). So assuming the
> > literature is correct, here is little info about Mexico vs. Super.
> > Mexico framesets first appeared in '75/'76. They were constructed of Columbus
> > Record & SL tubing. My early catalog refers to "4/10 Record". This refers to
> > the 10 tubes used to make a frameset, not including the steerer. I assume it
> > means that four tubes are Record, and the rest are SL. The problem is that the
> > catalog doesn't refer to which tubes are the Record tubes. (snip)