Schwinn classic seatpost is roughly 22.2mm in diameter and has thicker walls than a traditional seatpost to support the holes in it for use with the Schwinn unicycle frame. This size is recommended for riders between 5 foot 3 inches (when cut down) and 6 foot 2 inches in height.
This seat post has a standard four bolt configuration. Please check your cycle's seatpost diameter before ordering a replacement seat post.
Schwinn-style Seat Post
Posted by Mark on Feb 8th 2017
The seat post looks great - - nice polished surface. My only concern: it appears that the seat post holes are very slightly misaligned from the seat mount plate, thus causing the seat, when mounted to the post and installed on the unicycle, to be turned slighty to the right. It's hard to tell, and maybe by doing some "tweaking," I'll be able to get it right. Overall I'm pleased