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Specialized Armadillo Tires allow for a lighter tube?

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Specialized Armadillo Tires allow for a lighter tube?

Old 07-02-15, 09:09 PM
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Specialized Armadillo Tires allow for a lighter tube?

Since they are so puncture resistant, I could use a 70g tube with a 25mm/700c tire?
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Old 07-02-15, 09:50 PM
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I suppose you could, but why? The main advantage of a thin, light tube is that it reduces the wheel's rolling resistance since less energy is lost when the tube is periodically compressed at the contact patch. But the stiff sidewalls of the Armadillo tires result in a high rolling resistance which dwarfs the contribution of even a thick tube
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Old 07-03-15, 05:22 AM
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Doesn't much matter. Tubes are the least of the protections against puncture except in some very specialized, thorn-resistant cases.

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