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Carbon handlebar clamping

Old 11-03-16, 08:53 AM
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Carbon handlebar clamping

We've moved to carbon bars on several of our new bikes.

In general, I like them pretty well. They are lightweight and seem to dampen bumps better.

I have a problem with clamping them. Most have "grit" in the area where they are clamped. I assume this is to increase the coefficient of friction with the stem. If I have adjusted the bars several times, this grit seems to wear out and the bars slip. I have increased the torque above the spec to try to keep it from rotating. I think the torque spec is about 62 in-lbs. I have upped it to nearly 70 in-lb. I've made sure that the gap at the top of the clamp & the bottom is about equal. They are no longer slipping but I think hitting one big bump could cause them to rotate downward.

Have others had this problem? Is there a recommended fix?
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Old 11-03-16, 09:06 AM
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Old 11-03-16, 09:18 AM
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Ditto on the carbon paste.
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Old 11-03-16, 09:52 AM
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Yep carbon paste, it will also fix creaky carbon seat posts. If you use the paste correctly you shouldn't need to go paste the torque settings.
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Old 11-03-16, 10:23 AM
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Thanks!
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Old 11-04-16, 08:41 AM
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