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Old 10-26-04, 12:56 AM   #1
Big H
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Urgent help needed on seatpost sizing

I got my wife a very neat Carrera Alu MTB frame. I need a 30,6 mm seatpost ... odd size it seems. Will a 30,4 mm post work???? Can I use (or turn) a shim and use a"standard" post 27,???mm dia. I have a suspension seatpost that came form my Trek 7200 or I can use the Kalloy post that is on her Nishiki. I am building the components over form her Nishiki. Any help would be appreciated as she keeps on pestering me to finish her bike!!!!
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Old 10-26-04, 04:56 AM   #2
wonder squirrel
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If you have the means to turn down the material (a lathe, mill, etc.) then you could make a shim easily. I'd go with the smaller dia. post (27mm) so you can have plenty of material for the shim itself, and I'd use steel. Roughin' the inside/outside of the shim, and it should hold tight againist the alum frame.
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Old 10-26-04, 08:59 AM   #3
Maelstrom 
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Cut a tin can and use it as a shim
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