rustystrings61
Seat post solutions
I had carefully restored the GS seat tube top to its correct 27.2 mm inner diameter, only to realize I was slap out of spare 27.2 posts. I initially hoped the donor bike's post would work, but in the end the best answer lay in my parts bins. It took a while, but I eventually I found the right box. The Cane Creek shim came from who knows which scavenged bike, and while it's meant to shim 25.4 to 26.0, it also works beautifully to make the pictured 26.4 mm steel post from a mid-70s Peugeot PR-10L work as a 27.2.
Seat post solutions
I had carefully restored the GS seat tube top to its correct 27.2 mm inner diameter, only to realize I was slap out of spare 27.2 posts. I initially hoped the donor bike's post would work, but in the end the best answer lay in my parts bins. It took a while, but I eventually I found the right box. The Cane Creek shim came from who knows which scavenged bike, and while it's meant to shim 25.4 to 26.0, it also works beautifully to make the pictured 26.4 mm steel post from a mid-70s Peugeot PR-10L work as a 27.2.