Home made shim for seat post

I´m having a problem with my seat post, I think it´s a wee bit too small and therefor always dropping, bout a mm a day or so. Not much but very annoying.

Tried today to make a home made shim out of a beer can and it worked a treat (I think, haven´t taken it for a ride yet), but then it struck me: Do you think the aluminium can will team up with the steel frame and get the post terribly stuck? Don´t want to get a stuck seat post, but I quite like the idea of riding around with a bit of beer can in my bike

Grease will stop them binding. Grease between the frame and the shim and between the shim and the post (basically everywhere).

I use assembly paste as it stops the binding and stops slippage.

use copper grease.

i've tried it myself and in the long run i would say it's better to get a proper sized seatpost.
thing is seatpost/seat tube take on quite a lot of stress. try riding around for an hour and take that seatpost out. you'll realise the beer can's been grinded down a bit and it'll eventually wear out.

I used a tuna can to shim nitto bars to a cinelli stem.
A little bit thicker so might last a bit longer.

i can second that, i use a lenght of old handlebar cut to length then split into two sections, works really well, might be a bit to thick for a seatpost though.

i will be doing the same thing very soon

i am hoping my seatpost fuses to my frame - one less thing to worry about getting stolen

jonnywilkinson i am hoping my seatpost fuses to my frame - one less thing to worry about getting stolen

weld the wheels on.