Retrobike Forum Index

It is currently Mon Dec 05, 2016 11:54 am

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 6 posts ] 
Author Message
PostPosted: Fri Aug 10, 2012 3:47 pm 
Dirt Disciple
User avatar

Joined: Mon Jun 25, 2012 4:23 pm
Posts: 84
Location: Kettering,Northamptonshire
Hi, so I have a 27" freewheeled bike which I want to make single speed.

Do you know how I can put a single cog on the rear wheel, to make it single speed? (not fixed)
I'm getting a new wheelset from bike shop but will go 27" now, but all 27" wheels are freewheel - are there any single speed kits or something I can use?

Would the below cog work? And would I need anything else to put on it to make it stay? Or spacers?

http://www.chainreactioncycles.com/Mode ... delID=7805

Any help will be appreciated.

Thanks.


Top
 Profile  
 
 Post subject:
PostPosted: Fri Aug 10, 2012 6:33 pm 
Retro Guru

Joined: Tue Jun 03, 2008 4:31 pm
Posts: 740
Depends on the hub. i am going to ake the assumption that your 27" wheels are original and thus half a screw on freewheel rather than a cassette. If so that free wheel is all you need. Once fitted you may have to fiddle with the chain line which may need adjustiing which in the worst case might mean that the wheel needs the spokes redishing. To be honest, if it was mine I would bung that freewheel on and see. I expect it will be ok.
Don't buy cheaper freewheels such as Dicta. They are junk.


Top
 Profile  
 
 Post subject:
PostPosted: Fri Aug 10, 2012 8:52 pm 
Dirt Disciple
User avatar

Joined: Mon Jun 25, 2012 4:23 pm
Posts: 84
Location: Kettering,Northamptonshire
Thanks, and I was told my wheels may have to be re-dished and spaced by someone else too.


Top
 Profile  
 
 Post subject:
PostPosted: Fri Aug 10, 2012 10:58 pm 
Retrobike Sponsor
Retrobike Sponsor
User avatar

Joined: Sat May 22, 2010 10:33 pm
Posts: 2192
Location: Suffolk
In order to avoid redishing, use a tripple chainset and use the granny ring position to mount your chain ring or use the inner of a double and get a shorter BB. I probably won't be perfect but will be close enough to do.

If your rear dropouts are 126mm then a screw on hub is mostly all that is available. If you rear dropouts have 130mm spacing then why not get a 27" wheel build with a single speed hub. Many way to skin this cat depending on your budget.


Top
 Profile  
 
 Post subject:
PostPosted: Mon Aug 13, 2012 7:29 pm 
Gold Trader
Gold Trader
User avatar

Joined: Wed May 20, 2009 1:29 pm
Posts: 10798
Location: Manchester, UK
you can perfect the chainline a little (ie move the freewheel to the right more!) by using a spacer behind the single freewheel.

IME you will have to use a quite short BB (depending on what cranks you're using and being careful not to get the ring too close to the chainstay), respace the axle to get correct chainline, then redish the rim to centre it in the frame


Top
 Profile  
 
 Post subject:
PostPosted: Tue Aug 14, 2012 12:08 pm 
Retro Guru
User avatar

Joined: Mon Mar 02, 2009 4:22 pm
Posts: 1481
Dead Rats wrote:
IME you will have to use a quite short BB (depending on what cranks you're using and being careful not to get the ring too close to the chainstay), respace the axle to get correct chainline, then redish the rim to centre it in the frame

This is exactly my experience. If you buy a wheel for a single speed freewheel you won't need to re-dish it because it will be centred already. You will probably need a narrower bottom bracket though, unless you offset the back wheel by spacing the hub and re-centre the rim.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: Gazelleer, kingbling, non-fixie, syvid_974 and 22 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