Colnago De Luxe MTB classica, what kind of steel for this frame

[pinsonbike]

Hello everyone, I have just acquired this mtb from Colnago and I would like to know what is the steel of this frame? Thanks

 

[SteelRaver]

Hi! Is this a Master? If so I suggest the frame is made of Columbus Giclo tubing.

 

[pinsonbike]

On the sticker above the top tube, On the sticker it's written Colnago special tube. Are these columbus tubes? And if so which ones?

 

[Kellerman70]

Not Gilco as the tubes are not crimbed/shaped. And 'only' LX equipped.
Probably Columbus OR tubing.

 

[pinsonbike]

Are the Columbus OR tubes a good tube?

 

[Kellerman70]

https://www.millfieldvelo.com.au/columbus-steel-tubing-timeline/
Have a look at this.
I think your bike is made from Chromor OR tubes and not Nivachrome.
You can also measure the seat post diameter, which can be an indication for the tube type.

 

[*Frank*]

Wenn Colnago Columbus verbaut hat, stand auch immer "by Columbus" drauf ... wenn da was von "tubi speciali" steht, ist das meistens simples HiTen oder vergleichbares ital. Geröhr - sieht man auch daran, wie "liebevoll" die Ausfallenden eingelötet sind.

 

[pinsonbike]

https://www.millfieldvelo.com.au/columbus-steel-tubing-timeline/
Have a look at this.
I think your bike is made from Chromor OR tubes and not Nivachrome.
You can also measure the seat post diameter, which can be an indication for the tube type.

thank you.

 

[joglo]

paint-job wise I'm not perfectly sure,

the model "Centaur" from 1990 looks pretty close

the text is just mentioning "Cromomoly" tubing and it came with Exage 500 LX. So maybe a good fit.

The Master in the undated brochure below has also same paint-job, but as mentioned already above, this has profiled tubes and equipped typically with better groups than LX.

 

[pinsonbike]

Well, I finally fell for this beautiful Rossin frame (Columbus Max Gold). I just have to put it together.