Tommaso time trial. Columbus CROMOR.
#1
Tommaso time trial. Columbus CROMOR.
This falls enough into C&V right?
Ok, as stated in the COD section, I've had a lead on this bike for some time now, and finally the fellow decided to sell it.
These will be the ''before'' pictures. Hopefully have some other projects out of the way soon so I can focus on this one.
Just a little dirty now, and could use new cables. Other than that it is a great piece.



Any ideas on the front hub? Phil possibly?
Ok, as stated in the COD section, I've had a lead on this bike for some time now, and finally the fellow decided to sell it.
These will be the ''before'' pictures. Hopefully have some other projects out of the way soon so I can focus on this one.
Just a little dirty now, and could use new cables. Other than that it is a great piece.



Any ideas on the front hub? Phil possibly?
#3
(rhymes with spook)
Joined: Aug 2009
Posts: 2,786
Likes: 749
From: Winslow, AR
Bikes: '83 univega gran turismo x2, '85 schwinn super le tour,'89 miyata triple cross, '91 GT tequesta, '90 yokota grizzly peak, '94 GT backwoods, '95'ish scott tampico, '98 bonty privateer, '93 mongoose crossway 625, '98 parkpre ariel, 2k'ish giant fcr3
Mmmmmm.........pretty, pretty, pretty! Nice acquisition!!
#4
Senior Member

Joined: Sep 2005
Posts: 3,005
Likes: 305
From: Hervey Bay, Qld, Australia.
Bikes: Colnago (82, 85, 89, 90, 91, 96, 03), 85 Cinelli, 90 Rossin, 83 Alan, 82 Bianchi, 78 Fountain, 2 x Pinarello, Malvern Star (37), Hillman (70's), 80's Beretto Lo-Pro Track, 80's Kenevans Lo-Pro, Columbus Max (95), DeGrandi (80's) Track.
Great buy. A real time machine.
#5
Senior Member
Joined: Jul 2009
Posts: 11,128
Likes: 39
Bikes: 1986 Alan Record Carbonio, 1985 Vitus Plus Carbone 7, 1984 Peugeot PSV, 1972 Line Seeker, 1986(est.) Medici Aerodynamic (Project), 1985(est.) Peugeot PY10FC
I'm surprised again to see yet another TT frame built with heavier tubing (Cromor). You would think that they would use at least Colombus SL for these bikes, but there must be a concious design decision to use the heavier tubing to meet the particular needs in time trials?? Are they looking at these bikes more like track bikes where frame stiffness is a big goal?
Chombi
Chombi
#6
Senior Member
Joined: Oct 2006
Posts: 1,846
Likes: 4
From: Puyallup Washington
Bikes: Motobecane Mirage fixed gear, Nashbar Alpha Road 5000, Bianchi Grizzly, Coppi Fiorelli, , Schwinn Trike, , GT All Terra, Old Peugeot, Nishiki 3 speed, Bugatti, Cannondale Black Lightning, Dura All, Bianchi Touring, Bridgestone T700 & more
Front hub is an American Classic. Cool bike!
#7
I'm surprised again to see yet another TT frame built with heavier tubing (Cromor). You would think that they would use at least Colombus SL for these bikes, but there must be a concious design decision to use the heavier tubing to meet the particular needs in time trials?? Are they looking at these bikes more like track bikes where frame stiffness is a big goal?
Chombi
Chombi
the difference is in production: SL is drawn over a mandel to create a seamless tubing, whereas CROMOR is rolled into tubes from sheet and then seam-welded into tubes. iirc...back in the day True Temper made *all* of their tubesets, even their best, via the latter seam-welding process.
#8
Great looking bike - I also love the funny bikes for some weird reason.
__________________
1984 Gitane Tour de France; 1982 Nishiki Marina 12; 1984 Peugeot PSV; 1993 Trek 950 mtb; 1991 GT Karakoram, 1983 Vitus 979; Colnago Super, 1989 Spectrum Titanium,
1984 Gitane Tour de France; 1982 Nishiki Marina 12; 1984 Peugeot PSV; 1993 Trek 950 mtb; 1991 GT Karakoram, 1983 Vitus 979; Colnago Super, 1989 Spectrum Titanium,
#9
I'm surprised again to see yet another TT frame built with heavier tubing (Cromor). You would think that they would use at least Colombus SL for these bikes, but there must be a concious design decision to use the heavier tubing to meet the particular needs in time trials?? Are they looking at these bikes more like track bikes where frame stiffness is a big goal?
Chombi
Chombi
The road bike needs to be able to sprint and climb well, so needs to be stiffer to withstand the higher peak torque. About the only time a TT bike sees much torque is at the start and turnout, and even those are gradual accelerations in comparison to a finishing sprint. A lighter (limper) frame on a TT bike wouldnt be much of a problem in terms of stiffness but the lighter weight also wouldnt really be any faster on a flat course. If there are uphills involved, a TT position bike is the wrong bike for the job anyway!
I would think that the selection of cromor was probably largely just an economic pricepoint decision, particularly since the performance of a TT bike would not be effected much by either a lighter frame or a stiffer frame. Spend the $$ on some aero wheels if you want to go fast.
+1 for American Classic hub ID.
Thread
Thread Starter
Forum
Replies
Last Post
maki.dm
Classic and Vintage Bicycles: Whats it Worth? Appraisals.
1
02-05-15 02:19 AM








