Retrobike Forum Index

It is currently Thu Dec 08, 2016 5:08 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 71 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6, 7, 8  Next
Author Message
 Post subject:
PostPosted: Tue Apr 03, 2012 9:15 pm 
Retro Guru
User avatar

Joined: Tue Nov 23, 2010 9:00 pm
Posts: 392
Anthony wrote:
samc wrote:
I've got a lovely battered old Easton EA70 seatpost waiting for this beauty. I know it's aluminium too, but it'll actually fit!

Aluminium in steel is fine, but copperslip is your friend. Maybe this post hadn't even been greased, but even if it had been, grease is not a very good anti-sieze. The copper granules in copperslip prevent the galling reaction from taking place.

Well done with your project. I think you've done really well to get away with so little paint damage.


Sounds like a good tip, I'll get hold of some; I'd hate to get a proper nice seatpost stuck in, rather than the bog-standard one that was in there (& deserved melting out).


Top
 Profile  
 
 Post subject:
PostPosted: Tue Apr 03, 2012 9:24 pm 
Dirt Disciple

Joined: Fri Mar 23, 2012 7:58 am
Posts: 14
it has about 7 1/2" showing original seat post so dont know how much more there is 18" frame


Attachments:
IMG20120403_003.jpg
IMG20120403_003.jpg [ 131.63 KiB | Viewed 723 times ]
Top
 Profile  
 
 Post subject:
PostPosted: Tue Apr 03, 2012 11:33 pm 
retrobike rider
retrobike rider

Joined: Sun Sep 23, 2007 11:22 pm
Posts: 7306
Location: Hove
mordorf wrote:
it has about 7 1/2" showing original seat post so dont know how much more there is 18" frame

OK, as you're a fellow sufferer I've just taken out my replacement 94 O'Beam to measure it (I found an identical one, which was quite lucky as they're rare). It is 345mm from the rail to the end, so if yours is showing 190 to the rail, you have c155mm inside. I wouldn't like to say whether sawing that far down would be do-able. Obviously it would be a lot more difficult, but my 100mm was quite easy. It must depend on how long a metal-specific blade you could find - mine is only 162mm, which would be extremely marginal!


Top
 Profile  
 
 Post subject:
PostPosted: Wed Apr 04, 2012 5:12 pm 
Dirt Disciple

Joined: Fri Mar 23, 2012 7:58 am
Posts: 14
Anthony wrote:
mordorf wrote:
it has about 7 1/2" showing original seat post so dont know how much more there is 18" frame

OK, as you're a fellow sufferer I've just taken out my replacement 94 O'Beam to measure it (I found an identical one, which was quite lucky as they're rare). It is 345mm from the rail to the end, so if yours is showing 190 to the rail, you have c155mm inside. I wouldn't like to say whether sawing that far down would be do-able. Obviously it would be a lot more difficult, but my 100mm was quite easy. It must depend on how long a metal-specific blade you could find - mine is only 162mm, which would be extremely marginal!

thanks for that :D


Top
 Profile  
 
 Post subject:
PostPosted: Wed Apr 04, 2012 6:39 pm 
Old School Grand Master

Joined: Sun Jun 27, 2010 9:37 am
Posts: 3976
i had a really useful tool for doing this, but lent it to another rb'er on the premise that anyone who wanted to borrow it could. cant remember who it was though :oops: :lol:


Top
 Profile  
 
 Post subject:
PostPosted: Wed Apr 04, 2012 6:58 pm 
Retro Guru
User avatar

Joined: Tue Nov 23, 2010 9:00 pm
Posts: 392
@sherlylock - those bar ends look lovely! That's a good tip, using either oven cleaner or CS diluted to oven cleaner strength (about a quarter as strong as I was using) to remove anodising. Especially purple anodising :wink:

@jamabikes - was it a tool for slicing into tube interiors? That would be handy! What did it look like? I tried buying a small holder for a fine-toothed hacksaw blade, but sawing just didn't remove material at any noticeable rate.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Apr 04, 2012 7:59 pm 
retrobike rider
retrobike rider
User avatar

Joined: Fri Aug 08, 2008 2:36 pm
Posts: 16748
Location: Yorkshire, England
If you suddenly find you need large amounts of it and you cannot get it other cheaper ways
Go here
https://www.soapkitchenonline.co.uk/cgi ... 5#a1_21635

For Obeams and similar Kalloy/IRD/USE posts, try a long bar through the bolt bar first or as part of it.


Top
 Profile  
 
 Post subject:
PostPosted: Thu Apr 05, 2012 11:10 am 
Retro Guru
User avatar

Joined: Tue Nov 23, 2010 9:00 pm
Posts: 392
That's a good shout, £3.50 for 1kg is 20% less than I was paying.


Top
 Profile  
 
 Post subject:
PostPosted: Thu Apr 05, 2012 11:29 am 
Old School Grand Master
User avatar

Joined: Tue Oct 04, 2011 4:15 pm
Posts: 3499
Location: Behind you with the duct tape pulled out.
Samc you should change your avatar to the corrosive warning symbol.


Top
 Profile  
 
 Post subject:
PostPosted: Fri Apr 06, 2012 9:59 pm 
Retro Guru
User avatar

Joined: Tue Nov 23, 2010 9:00 pm
Posts: 392
poweredbypies wrote:
Samc you should change your avatar to the corrosive warning symbol.


:lol: if I could find a cool gratuitously animated 3d avatar one, I would!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 71 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6, 7, 8  Next

All times are UTC [ DST ]


Who is online

Users browsing this forum: Cheshire1980 and 40 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