Review on 🪜 Cane Creek Seatpost Shim 28.6-31.6mm by Dustin Miller

I installed a Shockstop seatpost that required a bushing to match the diameter of the bike's rack tube. I measured as accurately as I could, but the first sleeve wasn't thick enough. A YouTube video advised me to check the manufacturer's information. It turns out my measurements were wrong by 0.2mm. It was the difference between the seatpost staying in place and sliding into the tube. When I finally got the right sleeve size, it worked great.