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TT bike question

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TT bike question

Old 07-29-07, 08:40 PM
  #1  
Plow13
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TT bike question

i always see the TT bikes with the disc rear wheel for aerodynamics...so why dont they use the disc wheel in the front too?
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Old 07-29-07, 10:05 PM
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dcon
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Originally Posted by Plow13 View Post
i always see the TT bikes with the disc rear wheel for aerodynamics...so why dont they use the disc wheel in the front too?
My guess is it'd be pretty hard to handle. I'm sure it's been done, but the risks of making the bike even harder to handle might outweigh the benefits.


EDIT: According to Wikipedia, Fignon used a front disc in the 1989 TDF.

Last edited by dcon; 07-29-07 at 10:07 PM. Reason: Found additional info
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Old 07-29-07, 10:10 PM
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Handling gets really nasty in crosswinds. Even a 50mm front aero wheel can be tossed around fairly quickly with strong cross gusts.
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Old 07-29-07, 10:27 PM
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Trust me, it's hard even with a 45mm deep carbon rim with three wide spokes. Added to that, you're usually in the aerobars when the wind hits it, which is a very unstable position.
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Old 07-29-07, 10:53 PM
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Here is a cool final stage with some commentary on the difference... Lemond vs. Fignon

it is crazy you can actually see how difficult is was to keep it strait, in oppose to the spoked front..

https://www.youtube.com/watch?v=AyvwtOQYQ-E


hope it isn't to redundant...
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