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Old 12-21-25 | 09:58 AM
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ls01
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Originally Posted by SoSmellyAir
How many times?
Which brand and model of CF seat posts?
How much did / do you weigh when they broke?
Did you use a torque wrench to install those CF seat posts that ended up breaking?



About a 50 g difference between a Cannondale Save vs. a Thomson (no "p") Elite seat post at 27.2 mm.
I had a shopping bag with 6 broken posts in it. I threw it away a couple years ago. 2 Bontrager 1Specialized, the other 3 were all aftermarket.
kind of a personal question but let's just say over 2 bills. I'm not a little fella.
Yes. I use a torque wrench on all my carbon parts. The failure is from flexing at the insertion point. It literally grinds a groove into the back and eventually cracks.
50 grams I'll give back to the weight weenie gods for saftey as a sacrifice. Plus you can tweak those posts a bit to get the difference down some. Cut off the extra post etc.
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