Retrobike Forum Index

It is currently Sun Dec 11, 2016 9:39 am

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 10 posts ] 
Author Message
 Post subject: Judy XC's and V-brakes
PostPosted: Sun Jul 29, 2007 9:29 pm 
BoTM Winner / retrobike rider
BoTM Winner / retrobike rider
User avatar

Joined: Thu Nov 23, 2006 2:12 pm
Posts: 5785
A really common set up but one that I cannot get right!

I have today tried two sets of V-brakes (LX and XTR's) on my Judy XC's. I cannot get any significant spring tension in the brakes - they're just 'soft'.

My forks only have one central spring hole - not three like some otehr forks.

Any ideas? I have tried tightening both grubs screws on the brakes fully in - no difference, I tried bending the springs out a little - again no difference....


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 29, 2007 9:54 pm 
Concours Judge
Concours Judge
User avatar

Joined: Wed Jul 06, 2005 3:59 pm
Posts: 8171
Location: a proper EU country
Sorry Kev, instead of the Quote icon I clicked the Edit icon. Please add again the details I deleted.

Below what I intended to do.


Top
 Profile  
 
PostPosted: Sun Jul 29, 2007 9:56 pm 
Concours Judge
Concours Judge
User avatar

Joined: Wed Jul 06, 2005 3:59 pm
Posts: 8171
Location: a proper EU country
MadCowKev wrote:
A really common set up but one that I cannot get right!

I have today tried two sets of V-brakes (LX and XTR's) on my Judy XC's. I cannot get any significant spring tension in the brakes - they're just 'soft'.

My forks only have one central spring hole - not three like some otehr forks.

Any ideas? I have tried tightening both grubs screws on the brakes fully in - no difference, I tried bending the springs out a little - again no difference....


Bending them a little bit more??

The same setup works fine on my Yo. Don't know why, but it works.

I am thinking: Aren't your rims wider? Maybe replace the longer cylindric bits on the inside with the shorter on the outside vice versa


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 29, 2007 10:32 pm 
BoTM Winner / retrobike rider
BoTM Winner / retrobike rider
User avatar

Joined: Thu Nov 23, 2006 2:12 pm
Posts: 5785
thanks Melvin

rims are 231's.

Will try bending them more......I already tried putting all the brake block spacers/adjusters on the 'inside'


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 29, 2007 10:38 pm 
Concours Judge
Concours Judge
User avatar

Joined: Wed Jul 06, 2005 3:59 pm
Posts: 8171
Location: a proper EU country
My Yo has 238. I don't know the difference. Seems you're stuck with a brakeless bicycle :lol: Makes you go faster.

Or?


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 29, 2007 10:44 pm 
Mr Darcy
Mr Darcy
User avatar

Joined: Wed Oct 26, 2005 8:36 pm
Posts: 5687
Location: Bicester
I run some narrow mavs with XTR vs, and they pull in a LONG way to the rim on Judys.

Just bend the spring a bit by hand, its how I always adjust them :)


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jul 30, 2007 8:20 am 
Retro Guru
User avatar

Joined: Wed Nov 22, 2006 12:04 pm
Posts: 1401
Location: North East Scotland (Aberdeen)
The rear brake bosses on my Lloyd are much further apart than the front ones - I ended up putting an additional flat spacer between the brake shoes and the V-brake arm.

Worked a treat.


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jul 30, 2007 10:38 am 
retrobike rider / Gold Trader
retrobike rider / Gold Trader

Joined: Sat Jul 21, 2007 9:48 am
Posts: 6980
Location: Bristle
seems to be too many combinations that dont work - i try and avoid paralell push V's now

LX paralell push + project 2 + mavic F519 = no worky


Top
 Profile  
 
 Post subject:
PostPosted: Tue Jul 31, 2007 3:45 pm 
BoTM Winner / retrobike rider
BoTM Winner / retrobike rider
User avatar

Joined: Thu Nov 23, 2006 2:12 pm
Posts: 5785
Bent the springs out (much further than before - only LX though) and now the brakes work.

Thanks Guys!


Top
 Profile  
 
 Post subject:
PostPosted: Wed Aug 01, 2007 6:48 pm 
Anglian Deputy AEC
Anglian Deputy AEC
User avatar

Joined: Mon Oct 09, 2006 6:13 pm
Posts: 6928
Location: Livin' in a dust bowl
Had a similar experience recently ...

Fitting a shim tune-up kit to a set of M739 V-brakes. Three of the cantis went well until the last one, fitted enough shims until all play removed and tightened up the axle bolt, ended up with a stiff parallel arm which caused the brake to refuse to return under spring pressure alone. Took out the smallest shim which left a small amount of play tightened it all up and hey presto! works perfect.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: adri.75, IHateRain, restorich, Tc and 39 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