- Make your own shim: 31.6 – 30.9
Strikes me that the difference of 0.7mm, between 30.9 and 31.6, isn’t worth spending nearly tenner on a seat post shim for?
I’ve just mocked up a shim from a sheet of 0.5mm, and obviously it’s too snug (total 1mm), but I was able to make it nice and long, and was also able to cut it with a Stanley knife.
Anyone running a pikey seat post shim?
Any suggestions as to a source of 0.35mm sheet i might find around the house this evening?
Piston head cans are 0.01mmPosted 1 month ago
Might try a Hob goblin next.
Beans for tea?
They make them out of plastic too, don’t they?martymacSubscriber
I run a shim on my surly, it’s a USE one, made of plastic.Posted 1 month ago
Doesn’t slip or anything, well worth a tenner imo.
Strikes me that the difference of 0.7mm, between 30.9 and 31.6, isn’t worth spending nearly tenner on a seat post shim for
If it makes the post fit the frame, it’s worth it. I have used drink can shims plenty though, they’re just a bit fiddly. Fine if you fit the post permanently, PITA if you need to raise and lower it frequently.Posted 1 month agoswedishmetalMember
35 years of riding MTB. Tried coke can shims a couple of times but that was 20 years ago. Ok to try on a cheap frame and post to get it working, maybe on a commuter for example, but just buy the right shim on anything else. Your frame and post will thank you for it.
Small tip – if you want to make sure a post is supported longer than a normal shin then buy 2 shims and grind off the lip on one and mount it lower down. A small dab of glue helps to keep it there if you ever want to pull it out without the shin dropping down the seat tube. Useful for bikes with longer sections of seat tube above the top tubePosted 1 month ago
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