's Forum Archives - Components

Archive Home >> Components(1 2 3 4 5 6 7 8 9 10 )

Slipping seeatpost? How to stop it?(4 posts)

Slipping seeatpost? How to stop it?Flothru
Apr 16, 2002 9:24 AM
I posted this in the general section but no responses. so I thought I would toss it in here to see if anyone here has some advice. Hey all, just got my new bike rolling this weekend. So far so good, but I am having a small problem with the seatpost slipping. I set the post to the height i want and then within a 1/4 mile it drops about 1/8" so far no more. I have a 2000 Schwinn Paramount with fastback seatpost clamp. The size of the seatpost is right. I have cranked the bolt as tight as I dare for fear of stripping. Any ideas how to fix this.
Ride on...

re: Slipping seeatpost? How to stop it?AaronL
Apr 16, 2002 10:00 AM
I went through the same dilemma a few months ago and learned a few tricks. First, make sure the post is sized correctly, if it's new, check to make sure it's not undersized. Same goes for the seat tube.

Second, if it's a carbon post, don't grease it.

Finally, and this is where I solved my problem. Grease the heck out of the seatclamp bolt. If it's dry, you can't torque it down correctly. If it's a ti bolt, toss it. They stretch and will eventually snap.

You can also rough up the inside of the seat tube with some 100 grit paper. But I bet if you try all of the above, the post will hold.

Good luck.
Apr 16, 2002 10:12 AM
Another thing...SGrouts
Apr 16, 2002 2:13 PM
1. Clean the seatpost well with cloth.
2. Grease the bottom 2 cm.
3. Clean the frame and insert the post. Crank it.
4. Spray some WD-40 (or similar) between post and frame (do not overspray) to eliminate creaking sounds.

That is all.