Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Folding Bikes Discuss the unique features and issues of folding bikes. Also a great place to learn what folding bike will work best for your needs.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 04-13-11, 03:33 PM   #1
Airburst
Senior Member
Thread Starter
 
Join Date: Oct 2009
Location: England, currently dividing my time between university in Guildford and home just outside Reading
Bikes: Too many to list here!
Posts: 1,921
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Folding seatpost...

Does anyone know if it's possible to get hold of a folding seatpost from anywhere? I have an Apollo folding bike (heavily modified) and my main issue with it is that the seatpost just drops into the frame using a quick-release seat clamp when the bike folds. The trouble with that is that I may be commuting on the bike, but I can't leave it locked up all day because of the risk of someone stealing the seatpost. Is there some manufacturer that makes a folding seatpost? If I had one, I could simply use a standard clamp with a bolt in it, which would at least deter opportunists from taking the seatpost.

Thanks in advance
Airburst is offline   Reply With Quote
Old 04-13-11, 03:49 PM   #2
vmaniqui
Senior Member
 
Join Date: Jan 2009
Location: Bay Area, SF California
Bikes: Citizen Tokyo, A-Bike, Dahon Boardwalk D6, Dahon Boardwalk D7, Dahon Curve D3, Dahon Mu XL, BF Tikit2, Dahon Speed TR, Dahon Curve SL.
Posts: 1,504
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
check this thread... http://www.bikeforums.net/showthread...terrent-enough
vmaniqui is offline   Reply With Quote
Old 04-13-11, 07:33 PM   #3
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 18,841
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 223 Post(s)
CM Wasson has modified Brompton's saddle adapter pin,
which fits on top of a plain seatpost.

I have the standard SAP, the other fits a QR,

You could get clever with some cable run up inside the seat post,
and anchored elsewhere on the bike.

so the post wont come out but so far..

Brompton's seatposts are flared at the bottom of the post,
so will only come out by pushing it out the bottom of the bike.


folding seat post is a key feature of Bike Friday's Tikit.

Last edited by fietsbob; 04-13-11 at 07:36 PM.
fietsbob is offline   Reply With Quote
Old 04-13-11, 10:29 PM   #4
jefmcg
Senior Member
 
Join Date: Feb 2008
Location: London
Bikes: Mezzo D9, 2012 Giant Avail 2
Posts: 710
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I read a suggestion somewhere (here?) of drilling a hole through the bottom of your seat post. Then when you drop the seat, you could put a padlock through the hole.

I don't know how it would affect the integrity of the seat post.

Though folding seatpost or this suggestion wouldn't stop someone with an allen key stealing the seat. Maybe a cable through the rails and wheels would be better?
jefmcg is offline   Reply With Quote
Old 04-14-11, 02:29 PM   #5
Airburst
Senior Member
Thread Starter
 
Join Date: Oct 2009
Location: England, currently dividing my time between university in Guildford and home just outside Reading
Bikes: Too many to list here!
Posts: 1,921
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by jefmcg View Post
Though folding seatpost or this suggestion wouldn't stop someone with an allen key stealing the seat. Maybe a cable through the rails and wheels would be better?
To be honest, all I want to do is make sure some opportunist doesn't walk by and steal the seatpost and saddle, anyone actually setting out with tools to steal bits off bikes would know enough to see that my Apollo's seatpost, which is basically a piece of gas pipe, was not worth the hassle. The other reason I want to use an allen key is that it's hard to adjust the QR so the seatpost doesn't slip while it's up, but slides down easily when I fold the bike. A folding post would make that a non-issue.
Airburst is offline   Reply With Quote
Old 04-15-11, 09:49 AM   #6
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 18,841
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 223 Post(s)
Isn't the point of a folding bike, taking it in with you?

was another discussion.. the idea : cable out the top of seatpost tube, around the saddle, and back in.

Anchor the cable on the frame and the post will not get nicked,

maybe even make it come up to just the right height, every time you pull up the seat.
fietsbob is offline   Reply With Quote
Old 04-15-11, 10:26 AM   #7
SesameCrunch
Eschew Obfuscation
 
SesameCrunch's Avatar
 
Join Date: Aug 2005
Location: San Francisco Bay Area
Bikes: 2005 Fuji Professional, 2002 Lemond Zurich, Folders - Strida, Merc, Dahon, Downtube, Recumbent folder
Posts: 3,850
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I loop my cable lock around the seatrails of my Brooks saddle, then around the bike frame onto a post. That secures the bike and the saddle.
__________________
SesameCrunch is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 05:15 PM.