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PostPosted: Sat Jun 22, 2013 12:18 pm 
Dirt Disciple

Joined: Sat Nov 10, 2012 8:12 am
Posts: 81
Location: Settle N Yorks
Afternoon all,
I've just noticed that the cheapy aftermarket seatpost on my spesh is slightly banana shaped. So I've whipped it out to look at the diameter in order to buy a replacement. It's a 26.4mm, which seemed an odd size to me, then I noticed that the clamp was nipped in a bit much so I carefully opened it out with a big screwdriver. Now the 26.4mm post rattles about in the tube, a 27.0mm is too tight, so should it have a 26.8mm post? Anyone know what the originally had? I don't have any verniers to measure it.
Ta muchly


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PostPosted: Sat Jun 22, 2013 9:23 pm 
Devout Dirtbag
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Joined: Sat Oct 13, 2012 9:27 am
Posts: 140
Location: UK Hampshire
Don't know when they changed them, but both my 89 Comps (Rockhopper & Hardrock) are 26.4.
My 95 Ultra is much fatter than the 27 max that is far as my micrometer goes.


Last edited by dan singh on Sat Jun 22, 2013 10:07 pm, edited 1 time in total.

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PostPosted: Sat Jun 22, 2013 9:49 pm 
Old School Hero
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Joined: Thu Apr 14, 2011 8:34 pm
Posts: 187
Location: Germany
My ´88 RockHopper has a 26.6 mm seat post and it fits snug or "saugend" as we say over here.


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PostPosted: Sun Jun 23, 2013 7:19 am 
Lincs, East and South Yorks Deputy AEC
Lincs, East and South Yorks Deputy AEC
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Joined: Sun Apr 08, 2012 11:56 am
Posts: 1496
Location: Doncaster
My 1988 Rockhopper (Touring Bike) has a stamped and original 26.4 seat post. I just bought a brand new one as the original is way too short. The new 26.4 didn't fit, after getting my callipers on the original it measures 26.2 !

I have ordered a replacement but the 26.4 I bought is now of no use, gutted.


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PostPosted: Sun Jun 23, 2013 7:39 am 
Dirt Disciple

Joined: Sat Nov 10, 2012 8:12 am
Posts: 81
Location: Settle N Yorks
Thanks all, it is looking like it should have a 26.4mm post. I have also now stumbled across a reference table on the Sheldon Brown website which also says 26.4. The post that had bent was an etc branded one, at least it didn't just snap though.


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