Originally Posted by
gster
Could be the wrong size.
Sheldon says:
Most steel bicycle frames have tubing of standard outside diameter. Frames made to British or Italian standards will typically have 1 1/8" (28.6 mm) seat tubes.
The Pug has a built-in shim, which supposedly can be removed easily to go up to a 1 inch (25.4 mm) post from the 22mm post used with the shim. Mine has the shim and I think the 22 mm post, which is a good snug fit except it slips! Gonna try cleaning post and inside of tube again with some solvent.