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seatpost diameter question ???(3 posts)

seatpost diameter question ???dupe
Aug 22, 2001 6:07 AM
i am building a period bike and cant find the quite right size (26.4) seat post. im very obsessive about detail.

i have found one which is 26.2 and another which is 26.8.

i could understand a full millimeter making a difference but would 0.2 of a mm be okay in terms of safety if i wound the bolt up tight and used it for general riding. im not racing or stressing anything out.

any opinions would be appreciated.

ciao, ben
re: seatpost diameter question ???Mike K
Aug 22, 2001 8:24 AM
You can shim the post with a piece of an Al soda can or with a piece of film (either should be covered up by the seat clamp and tube and will not be visible). This should work but test to make sure the post is not slipping before riding the bike.
Real shims that won't fall inTFerguson
Aug 23, 2001 5:50 AM
You can also get shims made for smaller posts to fit yours. Cambriabike.com and bikepartsusa.com have a 25.4 to 26.4 shim for <$5. 25.4 is a more common size. Also try your LBS for such a small part.
Terry