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Scratched Dropper Post Lower

1891 Views 4 Replies 3 Participants Last post by  TraxFactory
When I went to install my dropper post, I added some assembly compounds to the frame to add friction and any seizing that might happen with the dropper and the frame. But when I went to install the dropper, there was a lot of resistance, and my dropper post lower got scratched up. Will this affect the performance?
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When I went to install my dropper post, I added some assembly compounds to the frame to add friction and any seizing that might happen with the dropper and the frame. But when I went to install the dropper, there was a lot of resistance, and my dropper post lower got scratched up. Will this affect the performance?
nope, unless it the lower tube is deformed. Many frames still have a burr in the seat tube, even high end frames dont get this correct many times.
When I went to install my dropper post, I added some assembly compounds to the frame to add friction and any seizing that might happen with the dropper and the frame. But when I went to install the dropper, there was a lot of resistance, and my dropper post lower got scratched up. Will this affect the performance?
As TraxFactory mentioned, most frames will have some sort of bur in the tube, especially any aluminum frames. The assembly compound you used when installing your dropper is the likely the main cause for the scratches. Assembly compound or friction paste or carbon paste (all the same) uses small granules to add friction between two parts that require a low torque or clamping force and can gauge the metal when inserting the post. We recommend not using that on a dropper since the scratches can open up the possibility of corrosion which if left unchecked over time can lead to the post being cold welded to the frame from salts, or cleaning agents corroding the metals.

Simply use a light amount of normal bike grease to just do a very thin coating between the two surfaces. Friction paste is best used between carbon bars and stems or carbon seat posts.

Hope that helps!
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As TraxFactory mentioned, most frames will have some sort of bur in the tube, especially any aluminum frames. The assembly compound you used when installing your dropper is the likely the main cause for the scratches. Assembly compound or friction paste or carbon paste (all the same) uses small granules to add friction between two parts that require a low torque or clamping force and can gauge the metal when inserting the post. We recommend not using that on a dropper since the scratches can open up the possibility of corrosion which if left unchecked over time can lead to the post being cold welded to the frame from salts, or cleaning agents corroding the metals.

Simply use a light amount of normal bike grease to just do a very thin coating between the two surfaces. Friction paste is best used between carbon bars and stems or carbon seat posts.

Hope that helps!
Won't adding grease just make me need to add more torque so that it doesn't slip? How about anti-seize, or is it just going to act like grease in the sense that it will slip as well?
Won't adding grease just make me need to add more torque so that it doesn't slip? How about anti-seize, or is it just going to act like grease in the sense that it will slip as well?
It should not really slip with the proper torque even when lightly greased. If your getting some slippage with the proper torque then I personally would use some carbon paste. I could not image carbon paste causing the resistance issue you posted about initially.
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