![25.4 to 30.9 Seatpost Shim](https://cdn.thingiverse.com/assets/7b/91/ef/8e/fd/large_display_25.4_to_30.9_Seatpost_Shim_Render.jpg)
25.4 to 30.9 Seatpost Shim
thingiverse
Simple 25.4mm to 30.9mm seatpost shim for a bike, designed & printed so I could run a BMX pivotal post/seat in a MTB dirt jumper frame with a 30.9mm seat tube.
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