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Specialized Roubaix lateral flex?

Old 06-19-11, 09:38 AM
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Specialized Roubaix lateral flex?

So I just picked up a 2011 SL2 8r carbon roubaix. I've had the bike for two weeks now and have rode a few hours every day. At first the bike seemed good and stiff and I only weigh 155. This morning I went out for a ride and the bike felt a little spongy so back to the house to air up the tires 120psi. Back out, same thing. So when I got home I pushed my foot against the bb and the amount of flex seemed to be excessive, like really easy and to much.
Do carbon frames lose some of there stiffness? Or is this normal?
I have inspected the frame for cracks,chips and found nothing.
Thanks. WC.
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Old 06-19-11, 11:12 AM
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Originally Posted by Willycutts
Do carbon frames lose some of there stiffness? Or is this normal?
No. And no. Velo News just did a review where they quantitatively measured BB frame flex and found the Roubaix to be plenty stiff. Something isn't adding up.
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Old 06-19-11, 07:20 PM
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BB flex is contingent on atmospheric conditions...j/k.
Take the bike to the Specialized dealer for a proper evaluation.
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Old 06-22-11, 06:31 AM
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Ok, so I think I got some answers on this one. It might of helped you guy's to know that I'm 43 and this is the first time back on a bike in 20 years. So 20 years ago all we new was steal and so it's just been a huge new feeling to ride carbon. I also found that specialized make's the bike to be stiff where need be so you may feel a lil flex pushing against the bb with your foot especially compared to steal. And as far as the spongy feel I was told that at first the roubaix and some other carbon bikes may not feel as fast but that's due to the nature of carbon's dampening effect, especially with the roubaix.
So I'm starting to get used to it and the bike does seem to be opening up a bit. If that makes any sense. lol.
Thanks WC.
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Old 06-22-11, 06:38 AM
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Originally Posted by Willycutts
I pushed my foot against the bb and the amount of flex seemed to be excessive, like really easy and to much.
Is it the frame flexing, or the wheels?
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