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The New Millenium (according to ITM)...(12 posts)

The New Millenium (according to ITM)...Iwannapodiumgirl
Sep 22, 2002 6:44 PM
These new Carbon Millenium bar, stem and seatpost appear on the ITM website. Anybody know when these will be available? And how much?Weight appears respectible!

I guess the question remains, do we really need carbon stems, bars and seatposts? (An answer to this would also be good)

Cheers

ITM Millenium carbon bar http://www.itm.it/catalogo/inglese/sc_pr_pi.asp?id=58&tab=pieghe

ITM Millenium carbon stem
http://www.itm.it/catalogo/inglese/sc_pr_at2.asp?id=62&tab=attacchi

ITM Millenium carbon seatpost
http://www.itm.it/catalogo/inglese/sc_pr_rs.asp?id=13&tab=reggisella
carbon?DougSloan
Sep 22, 2002 7:13 PM
I think carbon makes a lot of sense in certain applications, especially tubing where you want high strength to weight ratio. Carbon's weak point seems to be where it joins something dissimilar. Handlebars make perfect sense. So to frames. Seatposts, to a lesser extent. But stems, not so much. The bulk of this "carbon" ITM stem is the clamp areas, which appears to be aluminum. then, in the short space in between, you must bond a carbon tube. You have two bonds in a highly critical area, subject to shearing and torsional loads. To me, that makes no sense, especially when there are lighter aluminum and magnesium stems already.

Doug
"carbon"...Iwannapodiumgirl
Sep 22, 2002 7:50 PM
Doug

I agree with your comments regarding the clamps being aluminium. Yet, I guess my thought was, would a reputable manufacturer make a structurally unsound stem? Perhaps my naivity coming through!

Cheers
"carbon"...weiwentg
Sep 23, 2002 3:45 AM
> would a reputable manufacturer make a structurally unsound stem?

Deda Newton did, although they've corrected theirs. and speaking of composite stems, anyone own a '02 TCR and had theirs break?
what's the advantage?DougSloan
Sep 23, 2002 5:47 AM
With any new product, especially pricey ones, I have to ask myself, "what's the advantage" versus anything else. The assumed advantages of carbon are light and strong, vibration damping (and looks cool), right? At 145 grams, the ITM carbon stem is bettered by at least half a dozen aluminum or magnesium stems, with some about 50 grams (almost 1/3) lighter. Also, "unsound" is relative. No product is perfect, it's a matter of degree and potential for failure. Some products have been proven already. So, then, why buy this one, given that we know that the carbon/metal bond is a potential weak point, it's not any lighter, and will likely be pricey? It must just be for some infinitessimal gain in vibration damping and cool factor, right? I think I'll wait and not break new ground on this one.

Doug
I want a bike that can pass through an airport metal dectectorOffTheBack
Sep 23, 2002 5:28 AM
without setting it off! Carbon chain, cassette, valve stems, spoke nipples... :-)
possible?DougSloan
Sep 23, 2002 5:50 AM
What if you had a kevlar belt driven single speed all carbon bike? All carbon frame and fork, ADA wheels, one piece carbon seatpost/saddle (or just have the entire thing molded on one piece -- no adjustments). No screws, everything is bonded or one piece. Do ceramic bearings have metal in them?

Doug
re: The New Millenium (according to ITM)...853
Sep 23, 2002 7:05 AM
I like that seatpost!
It will match my current ITM Millenium stuff.
The weight of the bars and the stem are almost if not heavier than the aluminum stuff.
I like that seatpost! It will match my current ITM Millenium stuff. The weight of the bars and the stem are almost if not heavier than the aluminum stuff.853
Sep 23, 2002 7:05 AM
approved
Thanks for comments...Iwannapodiumgirl
Sep 23, 2002 3:58 PM
Most reinforcing what I already knew - weak carbon/steel bonds, "heavy" carbon components, excessive use of carbon bits.

I am sticking with my "old" milleniums - tried and tested.

Cheers

ps the stem and post looks trick though. Pity bar tap will cover most of the bars pretty bits.
the post works great!!!C-40
Sep 23, 2002 4:09 PM
This is the same post that Colnago has been providing with the C-40 frame. I'm on my third season with one. The post has a little more setback than some other traditional posts, and the two-bolt clamp permits fine tuning of the saddle angle that won't change when fore/aft adjustments are made.
thanks...Iwannapodiumgirl
Sep 23, 2002 4:19 PM
I did not know that Colnago stem was the same as the new Milleniums Carbon.
I was ummhing and arrhing about getting the Campag carbon post. Would you suggest the Millnium is better? is more setback, easier to dial in and more durable?