Quote:
Originally Posted by teleguy57
I have a 380mm 27.2mm post....
The shim is 10cm long, and and at my saddle height there will be approx 12cm of unsupported post below the shim.
What would you do? Run the post as is with 12 cm "floating free" within the seat tube below the end of the shim, or cut so there's enough left for adjustments but have more of the post supported.
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Why cut it at all?
Shim or not, any seat tube that has a seatpost reinforcement sleeve (ie
many frames) will contact the seatpost only for the 100mm or so length of that sleeve. Feel inside the top of your seat tube. Therefore many seatposts often extend further down the seat tube well below the reinforcement sleeve and/or shim. No worries.
Cutting your seatpost will only reduce its future usefulness and market value.