I was going to do this as I have a dropper post with a chumba 31.6mm frame. However following a little bit of reasearch I found that USE will make you a custom shim for 6 quid. Bargain.

The USE part code is SS30-9-31.6

USE don’t deal direct with the public so you’ll need to get your LBS to order it. I got evans to do this and it took 4 days to arrive.

The main thing that makes it better than a coke can is that they machine a lip on to it so you can’t actually drop it down the tube.

Works perfectly and saved me getting a second dropper post (and/or messing round with coke cans).

Er, 0.7mm thick. It’s about twice as thick as a dr pepper can by my reckoning. Seems robust enough – i’m just going to leave it in the frame afterall.

Ah good point! That’s embrassing!

That said, I wasn’t particularly delicate. I shoved it in. Put post in. Jobs a good un. I’m not known for taking appropiate care!