Columbus Pista Special tubing

[Wilderbeast331]

Hey everyone,
I recently bought a custom track frame and the build told me it was made with Columbus PS tubing. Does anyone know anything about this tubing? He said it was rare but i didn't get a reason why.

Thanks

[fiamme red]

Columbus PS is the same as Columbus SP, with stouter chainstays (24 mm vs. 22.2 mm), used for track sprint frames.

[maximus]

I don't know much about it, but here is a link to Columbus tubing descriptions:

http://www.equusbicycle.com/bike/columbus/columbuschart.htm

Columbus SP
Heavy-duty, high-performance set, especially recommended for large frames. Double-butted tubing. Cold-rolled fork blades.

Got pics of the frame?

[fiamme red]

I don't know much about it, but here is a link to Columbus tubing descriptions:

http://www.equusbicycle.com/bike/columbus/columbuschart.htm

Columbus SP
Heavy-duty, high-performance set, especially recommended for large frames. Double-butted tubing. Cold-rolled fork blades.

Got pics of the frame?Go to this page: http://www.equusbicycle.com/bike/columbus/columbusoldfullcat/index.html

Scroll down for SL & SP specs vs. PL & PS.

[Wilderbeast331]

Cool, thanks a lot guys

[e-RICHIE]

Columbus PS is the same as Columbus SP, with stouter chainstays (24 mm vs. 22.2 mm), used for track sprint frames.
the fork blades were 24mm (by request); the chain stays were always 22mm atmo.

ps

arrange disorder

:cool: :cool: :)
:rolleyes: :rolleyes: :D
;) ;) :o

[Wilderbeast331]

I don't know much about it, but here is a link to Columbus tubing descriptions:

http://www.equusbicycle.com/bike/columbus/columbuschart.htm

Columbus SP
Heavy-duty, high-performance set, especially recommended for large frames. Double-butted tubing. Cold-rolled fork blades.

Got pics of the frame?

I will be posting pictures soon. I only have one bad photo as of now. It is an Andy Gilmour track frame.

[fiamme red]

the fork blades were 24mm (by request); the chain stays were always 22mm atmo.

ps

arrange disorder

:cool: :cool: :)
:rolleyes: :rolleyes: :D
;) ;) :oThe catalog (http://www.equusbicycle.com/bike/columbus/columbusoldfullcat/big/07columbuscat.jpg) shows 24/12.5 for forks, 24/22.2/12.5 for chainstays.

[e-RICHIE]

The catalog (http://www.equusbicycle.com/bike/columbus/columbusoldfullcat/big/07columbuscat.jpg) shows 24/12.5 for forks, 24/22.2/12.5 for chainstays.


well - that's nice.
there were no such items then as a 24mm sized chain stay.
the b.b. ports for all the O.D.s of the parts were 22.2mm atmo.
some, but not all, PS parts had an enlarged section after they left the shell.
it was all based on how they were ordered from columbo.

ps

arrange disorder

:o :o :D
:o ;) :cool:
:rolleyes: :) :p

[fiamme red]

well - that's nice.
there were no such items then as a 24mm sized chain stay.
the b.b. ports for all the O.D.s of the parts were 22.2mm atmo.
some, but not all, PS parts had an enlarged section after they left the shell.
it was all based on how they were ordered from columbo.Thanks for the explanation. So the catalog must mean that the chainstay bulged to 24mm behind the bottom bracket shell.

[e-RICHIE]

Thanks for the explanation. So the catalog must mean that the chainstay bulged to 24mm behind the bottom bracket shell.


yes - only if you ordered that piece that way.
and don't forget, back then all industry stuff was written in engtalian.

ps

arrange disorder

:cool: :) :cool:
:cool: :rolleyes: :)
:) :rolleyes: :cool:

[Wilderbeast331]

Thanks for the explanation. So the catalog must mean that the chainstay bulged to 24mm behind the bottom bracket shell.

That is how mine are

[zetroc]

Can you post a photo of the chainstay bulge exiting the BB shell?

I have a bike that might be partly/all PS, but can't be sure since there's no decal.

thanks.