Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

User Tag List

Reply
 
Thread Tools Search this Thread
Old 03-06-06, 11:00 PM   #1
sr20det
team mascot
Thread Starter
 
sr20det's Avatar
 
Join Date: Apr 2005
Location: Canada - Toronto
Bikes: gt gtb & marinoni pista special.
Posts: 1,264
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Columbus SP Tubing Q's:

Can anyone provide any insight on the Columbus SP tubing and how it compared to other Columbus tubesets around its time?
Also, since you're at it, could you also explain to me the diff. between the current Columbus: Sprit, Life & Zona?

Thanks a bunch!
sr20det is offline   Reply With Quote
Old 03-06-06, 11:03 PM   #2
trons
yo yo yo yo yo
 
Join Date: Nov 2005
Location: delaware
Bikes:
Posts: 2,518
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
try this. http://www.framebuilding.com/Columbus%20Tubing.htm
trons is offline   Reply With Quote
Old 03-06-06, 11:10 PM   #3
sr20det
team mascot
Thread Starter
 
sr20det's Avatar
 
Join Date: Apr 2005
Location: Canada - Toronto
Bikes: gt gtb & marinoni pista special.
Posts: 1,264
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
sick:
this is what it says.
Columbus SP : Steel. Recommended for larger standard size frames. Best suited to heavy riders for track events or road races on uneven surfaces

guess its gonna become my beater then.
sr20det is offline   Reply With Quote
Old 03-06-06, 11:10 PM   #4
baxtefer
Cornucopia of Awesomeness
 
baxtefer's Avatar
 
Join Date: Oct 2004
Location: not where i used to be
Bikes:
Posts: 4,847
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
have you rummaged around here yet?

http://www.framebuilding.com/Columbus%20Tubing.htm

isn't SP the same as SL, but beefier? (thicker walls)

Zona is Nivachrom, Life and Spirit are a niobium alloy.
basically the difference, as in all tubing, comes down to strength and weight.
Life and Spirit are stronger than Zona, so can be drawn to a thinner profile.

someone correct me if i'm wrong, but the only difference between Life and Spirit is that Spirit is thinner?
baxtefer is offline   Reply With Quote
Old 03-06-06, 11:45 PM   #5
11.4
Senior Member
 
Join Date: Jan 2005
Bikes:
Posts: 636
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Without getting too exotic, the Columbus tubings of the period were:

SP - road, heavier walled double butted
SL - road, lighter walled double butted
PS - track, heavier walled double butted
PL - track, lighter walled double butted

There was quite a lot of difference between the SP and SL (and between the PS and PL). The PL wasn't good for much other than ultralight pursuit frames or the occasional hour record bike. The SL worked for smaller frames and for lighter riders, but was fairly common on road frames in all but very large sizes. All in all, there just weren't many alternatives to select from, so tubing choice was pretty straightforward.
Each tubing evolved somewhat over their lifetime, so particular steel composition and precise butting tapers, wall thicknesses, etc. changed a bit, although the feel generally stayed about the same.
11.4 is offline   Reply With Quote
Old 03-06-06, 11:49 PM   #6
sashae
ganbatte!
 
sashae's Avatar
 
Join Date: Aug 2004
Location: nyc
Bikes: '06 Vanilla touring, '09 Vanilla cx, Zanconato cx, Moots Psychlo-X RSL prototype, Nagasawa track, Kalavinka track, Black Cat 29er, Cannondale Rize 2 26er, Serotta CRL Legend
Posts: 1,648
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Don't forget KL, the ultra-light double butted tubeset.

This page is excellent for comparison of the various tubing out there, covering Columbus, Ishiwata, Tange, Reynolds and Vitus. Interesting reading, those butt profiles.
sashae is offline   Reply With Quote
Old 03-07-06, 08:05 AM   #7
pigmode
works for truffles
 
pigmode's Avatar
 
Join Date: Jun 2002
Bikes:
Posts: 2,038
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
As mentioned above, SP was at the same level as SL--the top of Columbus' line. Many frames were spec-ed SL with SP chainstays and or SP fork tubes etc., etc.
pigmode is offline   Reply With Quote
Old 03-07-06, 10:19 AM   #8
11.4
Senior Member
 
Join Date: Jan 2005
Bikes:
Posts: 636
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Oh, yeah, I had tried to forget KL. Colnago used it on the first Mexico's. You could flex the bottom bracket with your hand, and rust out the top tube in one summer with perspiring in Texas heat. Ever squeeze the top tube of a Trek Madone? It flexes inwards like a piece of paper tubing. KL was about the same. Ugh.
11.4 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 02:48 AM.