DIY: what material to use as DIY shim seat post? Seat tube shim adapters are quite expensive, what kind of material do you recommend as a shim? I have seen in a thread some guys talking about home made shim: * paper tape * alloy drink can as a shim (aluminium or steel?) * Thin and quality paper/cardboard Which one would be the best?

Soda cans do the trick, cf this tuto

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