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Seat post
Probably a stupid question but I wanted to check prior to placing on online order with CRC. I have an old 27.2mm seatpost that just misses being clamped down on, the old post was 28mm and I thought it would work If I order a shim that says 27.2-28mm would this work or would the tube just slide down inside the shim?
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Seat tube clamps the shim, which clamps the seatpost. Just make sure the gap in the shim aligns with the slot in the top of the seatpost.
I got a 27.2 to 31.6 shim from CRC for my recent build and it worked a treat