Retrobike Forum Index

It is currently Sat Dec 10, 2016 4:16 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 7 posts ] 
Author Message
 Post subject: Marin BB sizing...
PostPosted: Wed Apr 24, 2013 7:39 pm 
retrobike rider
retrobike rider
User avatar

Joined: Wed Mar 03, 2010 11:59 am
Posts: 4437
Location: Near Southampton
...I'm pretty sure I know the answer to this question but an anyone tell me the BB sizing for a 1990 Marin? I think its 122mm X 68mm Does that sound about right?

Doug


Top
 Profile  
 
 Post subject: Re: Marin BB sizing...
PostPosted: Wed Apr 24, 2013 8:13 pm 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8222
Location: New Forest, UK
It is a 68 mm shell, but the exact length will depend on your chain set. Most Shimano ones of that age needed 122 or so though.


Top
 Profile  
 
 Post subject: Re: Marin BB sizing...
PostPosted: Wed Apr 24, 2013 8:19 pm 
retrobike rider
retrobike rider
User avatar

Joined: Wed Mar 03, 2010 11:59 am
Posts: 4437
Location: Near Southampton
hamster wrote:
It is a 68 mm shell, but the exact length will depend on your chain set. Most Shimano ones of that age needed 122 or so though.


It will be a DX MT60 one I think...SG rings...not compact...I know my 91 Marin was 122...


Top
 Profile  
 
 Post subject: Re: Marin BB sizing...
PostPosted: Thu Apr 25, 2013 6:36 am 
retrobike rider
retrobike rider
User avatar

Joined: Sun Feb 19, 2012 10:08 am
Posts: 6852
Location: Nth Somerset, UK
This might help: http://sheldonbrown.com/bbsize.html


Top
 Profile  
 
 Post subject: Re: Marin BB sizing...
PostPosted: Thu Apr 25, 2013 8:17 am 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8222
Location: New Forest, UK
Yes, DX takes 122.5


Top
 Profile  
 
 Post subject: Re: Marin BB sizing...
PostPosted: Thu Apr 25, 2013 8:21 am 
retrobike rider
retrobike rider
User avatar

Joined: Wed Mar 03, 2010 11:59 am
Posts: 4437
Location: Near Southampton
NeilM wrote:



Ah of course I had forgotten good ol Sheldon! Thanks


Top
 Profile  
 
 Post subject: Re: Marin BB sizing...
PostPosted: Thu Apr 25, 2013 8:21 am 
retrobike rider
retrobike rider
User avatar

Joined: Wed Mar 03, 2010 11:59 am
Posts: 4437
Location: Near Southampton
hamster wrote:
Yes, DX takes 122.5


Thanks mate!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: Si_33, themountie and 28 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