Columbus tubing

Hi robertstrack, I just thought you might like to meet your bike's cousin ;)

(BTW a lot of the parts have changed since this picture was taken...)

Pleased to make your acquaintance, so lets see an updated pic! Do you know what your frame tubing is?

Heya, looking for a 2nd build for myself, would anyone be so kind to tell me anything you know about this bicycle, i know there is no information to go along with the photo but id hope one of you out there has some guru knowledge on random bicycles.
its been listed as "Columbus Delta"
ive search the web for a while but ive not been able to find anything
Thanks.

I thought I might find answers on an old thread http://www.londonfgss.com/thread1450.html

but the columbus tubing chart isn't coming up for me from the link supplied - has it moved? also the columbus website is more about now than vintage -

so I thought maybe it might be useful to start pooling our knowledge about Columbus, steel at least, seeing as there are lots of juicy variants? anyone up for trying to grade them, in terms of quality or use/appropriateness? I think it would be a useful thread.

As a start there's a link I found to a 2003 web page for a frame builder.. http://www.terrafermacycles.com/tubesets/columbus/columbus_tubesets.htm

by the way Max your "Zona" is listed here..

I remember a while ago I was saying how useful it would be to have a chart of every different tubing listed and compared, i.e. Reynolds 631 is comparable to says COM 12.5 double butted (as far as I've notice in term of weight).

the link from the old post seems to be working fine. maybe try it again:

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

i.e. Reynolds 631 is comparable to says COM 12.5 double butted (as far as I've notice in term of weight).

it's density and youngs modulus would be the same so if the tube dimensions were the same the stiffness of the tubes would be identical. it's the tensile strength/KSI that enables a thinner tube or a larger o/d to be used (to build a lighter or stronger frame). the tube dimensions dictate stiffness.

Would be useful to have perhaps a chart with columbus, reynolds, vitus, tange etc side by side to illustrate which tubesets are of comparable grade. e.g. What reynolds tubeset would be comparable to Columbus sl. It would certainly help less clued up people figure out whether a frame theyve seen on the bay is a good deal or not.

http://home.comcast.net/~bobequus/images/bikepictures/Columbus-tubes.jpg

Hi
I accidentally bought this:http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=270455514424&ssPageName=STRK:MEWNX:IT on ebay, without doing any research. I may be able to worm out of it, but does anyone know if it is any good or not?

I've looked everywhere for info on Columbus Altec Tubing, but i found nothing.

Who's teaching the youth of today how to use google? No one? Can we get some volunteers please?

Columbustubi

i did that. no answers.
and i did follow your link.

"The alloy 7000, used by Columbus for the tube sets Metal Altec2 Plus, Zonal and Airplane, is defined as self-tempering: it is air-hardened."

i did that. no answers.
and i did follow your link.

Did you click the English flag? Did you click the Materials menu?

What about the 3rd link on the same google results list?
http://www.hillbrick.com.au/virtuemart-catalogue.html?page=shop.product_details&flypage=flypage-ask.tpl&product_id=119&category_id=7

Another one on the same page of results:
http://www.veloschils.com/html/columbus_.html

Or you could get really tricky and try three whole words for even more results..

"Columbus Altec tubing"

http://www.torelli.com/tech/matdesn.html

http://www.framebuilding.com/Altec2.htm

http://www.repartocorse.com/debernardi-frames.htm

ok, im young and dumb.
both in the art of googling and frame materials.
whats your opinion of it?

7000 series alu is fine and dandy. No idea about the bike you got though other than it has vertical dropouts = not so nice for fixing but you paid £40 = who cares? Build it, ride it and if you don't like it, sell it.

Thank You!

7000 series alu is fine and dandy. No idea about the bike you got though other than it has vertical dropouts = not so nice for fixing but you paid £40 = who cares? Build it, ride it and if you don't like it, sell it.

Whoa -- Hippy does know how to be charming!

I must've been in a good mood.

Do not let it happen again.

Fuck you.

;)

You have to get your boyfriend to give you another blowjob -- you're getting cranky w/o one.

Tfl?