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26.8 seat post in 27.0 seat tube(6 posts)

26.8 seat post in 27.0 seat tubelancezneighbor
Sep 8, 2002 6:55 PM
Will this work? Is a shim required? I have two bikes, one aluminum and one steel that both have 27.0 seat tubes, but it is hard to find seat posts in the 27.o size. Is 27.0 an odd size?
re: 26.8 seat post in 27.0 seat tubeLC
Sep 8, 2002 7:14 PM
They are around, but hard to find. It will slip if not the right size so look real hard. If you really must use a shim then get a 25.0 and shim that.
re: 26.8 seat post in 27.0 seat tubeEric_H
Sep 9, 2002 10:46 AM
27.2 is the most common size and therefore has the best selection of seatposts, but you should be able to find quality posts in size 27.0. Off the top of my head, the following companies have 27.0 posts:

Thomson, Shimano, Race Face, American Classic

The previous poster is right, using a 26.8 post will not be useful because it will likely slip.
Thanks! nmlancezneighbor
Sep 9, 2002 8:47 PM
re: 26.8 seat post in 27.0 seat tubeJimP
Sep 10, 2002 8:15 AM
The previous posts are correct in saying that the 26.8 post will probably slip in the 27.0 tube. There are some companies that make shims but the one you need would be very thin. U.S.E. makes seatposts in the 25.0 mm size and a selection of shims to bring it up to 26.8 (the size I use) or 27.0.

Easton makes the CT2 in 27.0 nm853
Sep 12, 2002 7:27 AM