Technical & Reference Section > Tech and Restoration

Seat post sizes????

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bmxboy70:
Ok guys and girls what sizes do seat posts come in? I have measured mine and it appears to be 23mm. The post I have is 22mm which I thought most are? Anyway are there posts that are 23mm or just below??? and has anyone got anything??

Thanks in advance Si. :daumenhoch:

bmxboy70:
Thanks for that! the post i have has a knurled bit on it and that holds ok but then the seat is way to high for racing?? I suppose I could cut it?

James Nada:
Simon,

Is it the Bully you're having trouble with?

Just a thought, but is it the seat clamp that's the problem rather than the post?

bmxboy70:
Yes it is the bully, but the clamps ok the post is only 22mm apart from the knurled bit which is 22.2mm so when I put it low for racing I don't like the way it clamps it bends the bolt! If I tighten on the knurled bit its fine but the seats to far up. After Karate I will do some pics! Anyway whats going on with the race is it on off or are we going somewhere else?? I'm up for anything just say the word! even a practice sess with the bmx boys!

bmxboy70:

--- Quote from: Glen on January 21, 2010, 04:30 PM ---Just use a shim around the post.  Cut a piece of coke can about 4 x 2cms,  works perfectly

--- End quote ---
Good thinking!!

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