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Seat post sizes

LikeOhMyGawd! · 2006-09-29 14:17:28

I'm on the look out for a carbon fibre seat post for my bike. Currently I have a 27.2 mm post with a shim that takes it up to 31.4mm to fit the seat tube. I've seen a few posts I like but can't get an exact 31.4mm item. There does however seem to be a good choice of 31.6mm posts. Do the cycling massive here think this will…

29-09-2006 2:17pm

#1

LikeOhMyGawd!

Closed Accounts Posts: 192 ✭✭

Join Date: March 2006

Posts: 185

I'm on the look out for a carbon fibre seat post for my bike. Currently I have a 27.2 mm post with a shim that takes it up to 31.4mm to fit the seat tube. I've seen a few posts I like but can't get an exact 31.4mm item. There does however seem to be a good choice of 31.6mm posts. Do the cycling massive here think this will do the job or will the extra 0.2mm mean it wont fit?

Thanks
LOMG!

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Comments

#2 29-09-2006 4:39pm

BeardyGit

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Posts: 3659

The tolerance is so tight that it won't fit. This is writing from personal experience.

Gil

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#3 30-09-2006 10:25am

Enduro

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You definitely don't want to try that with CF.

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#4 02-10-2006 9:45am

LikeOhMyGawd!

Closed Accounts Posts: 192 ✭✭

Join Date: March 2006

Posts: 185

Thanks guys. In a slight twist to the tale it emerges that the guy who built the bike up for me used a 31.4mm shim whereas he should have been a using 31.6mm as this is the correct size for the seat tube. Am now sorted with a nice new Ambrosio CF seat post:)

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