Retrobike Forum Index

It is currently Sat Sep 22, 2018 11:13 am

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: Shims for a seatpost
PostPosted: Mon Apr 16, 2018 8:44 pm 
Devout Dirtbag

Joined: Sun Sep 16, 2012 12:41 pm
Posts: 129
Location: Copenhagen
Hi there,

I need some advise on how to solve a problem that i´ve got.

I'm looking for a seatpost which is not easily available in the size 27.2 that my frame got. It has to be a Campagnolo mtb seatpost and the only ones I see, is either 27.0 or 26.6.

So my questions are:

Can I use the tin can solution on a 27.0 with a decent result?

Or can I use a trimmed down shim for the 26.6 post?

The latter could be trimmed (rolled) to fit into a 27.2 tube or is it a far out idea? (I would simply enlarge the already existing sleeve in the shim and then roll it to match the 27.2 mm. seattube.

I hope you guys could help me out on this one!


Top
 Profile  
 
 Post subject: Re:
PostPosted: Tue Apr 17, 2018 4:49 am 
Retro Guru
User avatar

Joined: Thu Apr 30, 2009 9:47 pm
Posts: 876
Location: Newbury, Berkshire
Many riders on here use a soft drinks can to shim a seat post.

The cans are very accurately manufactured, but the thickness is an unknown factor until you cut one up to measure with a Vernier.

The best method is to use brass sheeting available from model suppliers, as you can select the gauge required.

You'll need 0.1mm thickness as this dimension will double up when it is rapped around your 27.0mm Seatpost.

You can cut this stuff with scissors, but I use a modeling blade - just make a template out of paper first by wrapping it around your Seatpost.

https://www.ebay.co.uk/itm/Brass-Sheet- ... 1549930570

Pip.


Top
 Profile  
 
 Post subject: Re: Shims for a seatpost
PostPosted: Tue Apr 17, 2018 7:12 am 
Devout Dirtbag

Joined: Sun Sep 16, 2012 12:41 pm
Posts: 129
Location: Copenhagen
Okay, but if I prefer the latter one, would it be feasible with that solution with a 0.3 mm. sheet so I can use it on a 26.6 mm. seatpost?


Top
 Profile  
 
 Post subject: Re: Shims for a seatpost
PostPosted: Tue Apr 17, 2018 7:34 am 
Retro Guru
User avatar

Joined: Thu Apr 30, 2009 9:47 pm
Posts: 876
Location: Newbury, Berkshire
jongustafson wrote:
........ would it be feasible with that solution with a 0.3 mm. sheet so I can use it on a 26.6 mm. seatpost?

Yes it would. Try a model shop like this one:

https://www.ebay.co.uk/itm/Brass-sheet- ... vEzTKN3eLQ

Pip.


Top
 Profile  
 
 Post subject: Re: Shims for a seatpost
PostPosted: Tue Apr 17, 2018 9:32 am 
Devout Dirtbag

Joined: Sun Sep 16, 2012 12:41 pm
Posts: 129
Location: Copenhagen
Thanks, I try it


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: BerthaPog, MatBH5 and 14 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group