I got the seized carbon seat post out of this pile of shit without breaking anything.
I’ll be replacing the carbon post with a RaceFace Turbine dropper (aka fox transfer).
Any tips to not have the dropper seize up? Obviously it’s a fat bike so it’s subject to the worst elements.
Thinking I should put some park ASC1 on it, but worried about slipping.
by OkTale8
3 Comments
Use some heavy marine grease on the inside of the seat tube. On winter bikes I also like to cut a 2-3” section of inner tube (probably a 700×35 or so, MTB is likely too big), and install it over the top of the seat tube/seat collar area where the seat post is inserted. Do this before you install the post and it will act as a boot to keep water from entering your frame from tire spray at the top of the seat tube.
Is the frame aluminum? If so any grease will be fine to prevent this. A torqued collar shouldn’t slip, if it does you can over torque until it stops. Too much torque on a dropper can cause problems but if you torque, then check the dropper operation and it’s fine, then it’s fine.
Most important recommendation I have is pre-install. If this frame had corrosion in the seat tube previously you need to get a reamer in there and clean it up before you put something else in. Google “honing brush for drill” and buy an appropriate size.
After install I would suggest regularly pulling the dropper, cleaning it, and regreasing it every few months. If you stay ahead of the corrosion it won’t get so bad that you end up in a fight like this.
Three fingers of blame pointing at the mechanic…