Retrobike Forum Index

It is currently Fri Dec 09, 2016 10:38 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 14 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: Seat clamp problem
PostPosted: Fri Mar 09, 2012 7:18 pm 
King of the DuckBoard
King of the DuckBoard

Joined: Sun Jan 28, 2007 12:30 pm
Posts: 21466
When i tighten up my seat clamp it moves off the frame :x Just started doing it. :(

Never had this problem before :( What's happening?


Top
 Profile  
 
 Post subject:
PostPosted: Fri Mar 09, 2012 9:13 pm 
Old School Grand Master
User avatar

Joined: Mon Jun 14, 2010 9:06 pm
Posts: 4447
Location: Herts UK
sorcery? :shock:


Top
 Profile  
 
 Post subject:
PostPosted: Fri Mar 09, 2012 9:21 pm 
King of the DuckBoard
King of the DuckBoard

Joined: Sun Jan 28, 2007 12:30 pm
Posts: 21466
02gf74 wrote:
sorcery? :shock:



:shock: :lol: :lol: After the last few months. Not far from the truth :lol:


Top
 Profile  
 
 Post subject:
PostPosted: Fri Mar 09, 2012 10:33 pm 
Old School Grand Master

Joined: Sun Jun 27, 2010 9:37 am
Posts: 3976
the only thing i can think of is that the frame where the collar sits is slightly tapered.


Top
 Profile  
 
 Post subject:
PostPosted: Fri Mar 09, 2012 11:38 pm 
King of the DuckBoard
King of the DuckBoard

Joined: Sun Jan 28, 2007 12:30 pm
Posts: 21466
jamabikes wrote:
the only thing i can think of is that the frame where the collar sits is slightly tapered.


Could be right. It is very shiny. Lucky have a USE clamp that is a much tighter fit. X fingers sorted.

Added 10 grams :oops: :lol:


Top
 Profile  
 
 Post subject:
PostPosted: Fri Mar 09, 2012 11:41 pm 
Old School Grand Master
User avatar

Joined: Sun Aug 21, 2011 11:57 pm
Posts: 4074
Location: Antwerp, Belgium
Roughen it up with some coarse sanding paper. That might help.


Top
 Profile  
 
 Post subject:
PostPosted: Fri Mar 09, 2012 11:58 pm 
King of the DuckBoard
King of the DuckBoard

Joined: Sun Jan 28, 2007 12:30 pm
Posts: 21466
Raging_Bulls wrote:
Roughen it up with some coarse sanding paper. That might help.


Good idea. Why didn't i think of that :oops: It's been through two clamps :x


Top
 Profile  
 
 Post subject:
PostPosted: Sat Mar 10, 2012 12:40 am 
Retro Guru

Joined: Tue May 06, 2008 4:24 am
Posts: 713
Location: Edinburgh
check the allan bolt at the lever side, same thing happened to me last week


Top
 Profile  
 
 Post subject:
PostPosted: Sun Mar 11, 2012 10:02 am 
Old School Grand Master
User avatar

Joined: Mon Jun 14, 2010 9:06 pm
Posts: 4447
Location: Herts UK
can you post photo of the frame and clamp?

as ^^^ said, only way I can think that could happen is if the tube is worn to a taper so as you tighten the clamp, it wants to move to the smaller diameter part of the tube which would be towards the top.

is the seatpost of the correct diameter? that would cuase the tube to "collapse" causing it to taper inwards at the top.

A wider clamp may solve the problem. most unusual.


Top
 Profile  
 
 Post subject:
PostPosted: Mon Mar 12, 2012 10:43 am 
King of the DuckBoard
King of the DuckBoard

Joined: Sun Jan 28, 2007 12:30 pm
Posts: 21466
The first clamp i've binned as pissed me off. It was a 10 gram clamp. Replaced it with the Trimble original clamp. This moved.

My USE clamp works perfectly. Hope the problem has gone away?

The post fits perfectly. Will be getting a carbon this month.

Here are pictures.
Thanks


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 14 posts ]  Go to page 1, 2  Next

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 6 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