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 Post subject: Cutting a seatpost.
PostPosted: Sun Oct 27, 2013 2:24 pm 
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Joined: Fri Jan 25, 2013 2:31 am
Posts: 19
Just bought a Titanium Airborne seatpost. Its 33cms long. I usually use a 10cm length to ride. I want to cut 10m of the post to lose weight, is that safe to do? It will leave me with 23cms. 13 cms of the seatpost in the frame and 10 outside. Its supposed to be bulletproof, so I just want to trim it somewhat. Your thoughts thanks.


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 Post subject: Re: Cutting a seatpost.
PostPosted: Sun Oct 27, 2013 4:51 pm 
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Joined: Mon Jun 02, 2003 8:17 am
Posts: 6327
Location: Drenthe, Holland
Stop being in doubt, get the pipe cutters or the hack saw out.

I you want to go even lighter, you can also make a diagonal cut like Ritchey does with its posts.

Please next time post this in Road or MTB forums. :thumbup:

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 Post subject: Re: Cutting a seatpost.
PostPosted: Tue Nov 05, 2013 2:31 am 
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Joined: Sat Jan 23, 2010 1:24 am
Posts: 102
Location: Evansville, IN, USA
+1. I did the same. Just watch your minimum insertion length and it will work fine.

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 Post subject: Re: Cutting a seatpost.
PostPosted: Tue Nov 05, 2013 8:03 am 
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Joined: Thu Aug 25, 2005 7:09 pm
Posts: 1235
Location: In the industry
If your weight is that of a typical cyclist, you can probably cut off 16cm of post.

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 Post subject: Re: Cutting a seatpost.
PostPosted: Fri Nov 22, 2013 9:58 am 
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Joined: Fri Jan 25, 2013 2:31 am
Posts: 19
Thanks guys. I just bought a Moots 40cm post, 27.2 there's no insertion marks, I'm about 105kgs how much do you think I can cut of safely thanks :D


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 Post subject: Re: Cutting a seatpost.
PostPosted: Fri Nov 22, 2013 10:54 am 
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Joined: Sat Jun 19, 2004 11:08 am
Posts: 6721
Location: Urbana, Illinois
With a titanium post you could get by with as little as 70mm inside the frame. For me personally my number is I like at least a 100mm in the frame.

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 Post subject: Re: Cutting a seatpost.
PostPosted: Fri Nov 22, 2013 6:59 pm 
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Joined: Wed Nov 13, 2013 7:20 pm
Posts: 19
Location: Edmonton, AB
you want the bottom of the seatpost to extend past the bottom of the top tube at the TT/seat tube junction by at least 2cm. this prevents lateral forces from stressing that joint and "twisting" your top tube off the seat tube. otherwise you should be fine.


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 Post subject: Re: Cutting a seatpost.
PostPosted: Mon Dec 02, 2013 10:06 am 
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Joined: Fri Apr 12, 2013 1:19 pm
Posts: 742
Location: South West England
gtxizang wrote:
I want to cut 10m of the post to lose weight


You may have some issues if you cut 10 metres off your post ;)

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