Silverfish
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As per the title
Anyone know if anyone offers these?
Anyone know if anyone offers these?
That first one is perfectPerhaps this one? https://midwaybike.com/product/seatpost-shim-26-8-mm-to-29-4-mm-alloy/
Use has tons of shims but they start from standar measure to rare ones, for example the 27.2: https://www.ultimateuse.com/products/27-2mm-i-d-shim 27 different shims