New Seat post

Coop · Joined: 27 Jan 2008 Posts: 29 Location: Hyde Park, NY

I'm looking to get a longer seat post, something like a 350mm. Are seat posts on generally all the same diameter? When I look at the posts it says things like 24.5 X 350mm, my guess is 24.5 is the offset and likewise the 350 being the length, am I right about the offset?

I have a C-dale super-V 900, just want to know about the diameter most importantly.

Thanks for the help.

mtbxtc · Joined: 12 Nov 2006 Posts: 216

the 25.4 is the diameter and they come in all kinds of sizes

the most common size is a 27.2mm

you must match the diameter size for a proper fit.

lengths are also variable depending on the manufacturer

all you want to know about seat posts and more
http://en.wikipedia.org/wiki/Seatpost
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Coop · Joined: 27 Jan 2008 Posts: 29 Location: Hyde Park, NY

That was helpfull, I just found that all cannondale post are 27.2

Thanks and have a good one

Jim Mac · Joined: 16 Apr 2007 Posts: 135

As far as I can recall, Thomson post come in various lengths - put a 410 mm on my singlespeed. Pricey but nice.
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