Carbon Seatpost preparation
05-17-22, 02:23 PM
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Carbon Seatpost preparation
How thoroughly do I need to remove grease from the seat tube, etc before installing a carbon seatpost in place of an alloy post?
Aluminum frame, if that matters.
Thanks
Aluminum frame, if that matters.
Thanks
05-17-22, 02:34 PM
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Doesn't have to be sterile clean, just enough that when running your finger in the ST it comes out clean. Make sure to apply new grease or carbon paste.
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05-17-22, 02:53 PM
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05-18-22, 12:46 PM
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+1. If you don't have any CF paste, try grease. Usually works fine. My neighbor weighs 260lbs. Never used anything on his CF seatpost except grease and never slips.
05-18-22, 02:13 PM
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Since you guys know more than me would you use grease w/ a carbon post and a carbon frame?
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05-18-22, 02:45 PM
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05-18-22, 06:01 PM
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Agree with Crankycrank, and while I have not seen it with bikes in industry we have had greases disagree with some carbon epoxies resins.
05-18-22, 09:20 PM
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05-19-22, 07:58 AM
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My whole point is that if you don't have any on hand and want to save $8+ and don't want one more tube of something that might get used every 2 years?? laying around it's OK to try without. I would agree that using the paste to begin with it the best choice if what I mentioned are not a concern for the user.
05-19-22, 08:18 AM
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Exactly. Anyone that does any work with carbon parts should have carbon paste on hand. At the very least it allows you to use the lowest possible torque setting to clamp your carbon components.
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05-19-22, 10:59 AM
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I bought Finish Line Fiber Grip CF Bicycle Assembly Gel for just > $8 from Amazon.com 3 years ago, and still have quite a bit left. It is now just < $10 on Amazon.com. At either price it is safer (for me) just to use a little so I can slightly under torque the hidden seat post clamp to reduce the risk of cracking the clamp or the CF seat post, both of which are much more expensive.
05-19-22, 06:37 PM
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Though assembly paste can scratch finishes, so I'd only use if you need it.
