Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Replacing front V-brake due to broken spring

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Replacing front V-brake due to broken spring

Old 07-24-11, 08:21 AM
  #1  
htid85
Newbie
Thread Starter
 
Join Date: Jul 2011
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Replacing front V-brake due to broken spring

Hi all

I'm not a bike person so excuse me if this is a blindingly obvious question - but my old man bought a folding bike a while back after a motoring accident to help him get moving again, but ended up buying himself a more suitable bike and basically not touching the folding one. I won't go into details of models and parts etc as it's a generic one.

He's asked me to flog it for him, and I notice that the front brake is stuck on, on one side. I unhooked the cable and noticed that there's no spring-back at all, it's just sort of floppy.

Am I right in thinking I should just get a new front brake? Do they tend to come in loads of different sizes or can I just get a general v-brake, unbolt the old, bolt on the new, adjust, and we're away?

Something like this perhaps? https://www.ebay.co.uk/itm/BLACK-V-BR...item2565cfac8d

Pics for clarity, cheers
Matt


htid85 is offline  
Old 07-24-11, 09:57 AM
  #2  
Retro Grouch 
Senior Member
 
Retro Grouch's Avatar
 
Join Date: Feb 2004
Location: St Peters, Missouri
Posts: 29,935

Bikes: Catrike 559 I own some others but they don't get ridden very much.

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 1450 Post(s)
Liked 357 Times in 219 Posts
Look at the back side of your brake caliper. Usually there's a wire finger from the brake sticking straight up. It has to hook behind a little nub. If the spring is broken or the nub is missing I'd replace the whole caliper. Otherwise the little screw that's visible near the pivot can be tightened to increase the return spring tension.
Retro Grouch is offline  
Old 07-24-11, 10:34 AM
  #3  
fietsbob
Banned
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 43,598

Bikes: 8

Mentioned: 197 Post(s)
Tagged: 0 Thread(s)
Quoted: 7607 Post(s)
Liked 1,284 Times in 801 Posts
+1, just buy a new caliper pair, there are a wide price range offered these days..

in the Shop, we are bending those springs all the time to attempt balanced actuation.
fietsbob is offline  
Old 07-24-11, 11:04 AM
  #4  
htid85
Newbie
Thread Starter
 
Join Date: Jul 2011
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Cheers for the reply mate.

The back side of it looks just like the others really - and I've tightened the screw as much as possible and it's made no difference really; it's just flopping about.

Can we assume the spring is knackered from this?

thanks
Matt

Originally Posted by Retro Grouch View Post
Look at the back side of your brake caliper. Usually there's a wire finger from the brake sticking straight up. It has to hook behind a little nub. If the spring is broken or the nub is missing I'd replace the whole caliper. Otherwise the little screw that's visible near the pivot can be tightened to increase the return spring tension.
htid85 is offline  
Old 07-24-11, 11:15 AM
  #5  
mechBgon
Senior Member
 
mechBgon's Avatar
 
Join Date: Jul 2002
Posts: 6,957
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
You could also remove the brake from its stud and confirm that the protruding tip of the spring is, in fact, anchored in the hole on the fork's brake stud. But those are very low-quality brakes (stamped steel) and I would waste very little effort on them when you can have nice Shimano Aceras for cheap.
mechBgon is offline  
Old 07-24-11, 11:27 AM
  #6  
fietsbob
Banned
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 43,598

Bikes: 8

Mentioned: 197 Post(s)
Tagged: 0 Thread(s)
Quoted: 7607 Post(s)
Liked 1,284 Times in 801 Posts
V brakes separate the spring in 2 sections, so that screw has effect.
one in the frame boss hole,
the other positioned, against the other end of the screw.

Exception, Pauls Comp,
they use the same return spring mech thru out their brake offerings..

A US company , so not cheap.. to make things in California.

they cost more than you probably paid for the bike..

Last edited by fietsbob; 07-24-11 at 11:30 AM.
fietsbob is offline  
Old 07-24-11, 11:28 AM
  #7  
htid85
Newbie
Thread Starter
 
Join Date: Jul 2011
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
So is size an issue or are they just standardised?

Matt
htid85 is offline  
Old 07-24-11, 11:31 AM
  #8  
mechBgon
Senior Member
 
mechBgon's Avatar
 
Join Date: Jul 2002
Posts: 6,957
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
There do exist "stubby" V-brakes aimed at specific niche markets, so no they're not 100% standardized.
mechBgon is offline  
Old 07-24-11, 12:20 PM
  #9  
JanMM
rebmeM roineS
 
JanMM's Avatar
 
Join Date: Jan 2006
Location: Metro Indy, IN
Posts: 15,888

Bikes: RANS V3 ti, RANS V-Rex, RANS Screamer

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 565 Post(s)
Liked 185 Times in 123 Posts
I've put Forte brakes similar to these on a couple of bikes. Perfectly adequate braking for not many bucks.
https://www.performancebike.com/bikes...egoryId=400927

Probably similar to what you linked to. V-brakes are easy to install and adjust.
__________________
Bacchetta Giro A20, RANS V-Rex, RANS Screamer
JanMM is offline  
Old 07-24-11, 12:31 PM
  #10  
htid85
Newbie
Thread Starter
 
Join Date: Jul 2011
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by mechBgon View Post
There do exist "stubby" V-brakes aimed at specific niche markets, so no they're not 100% standardized.
Ok well with niche markets being an exception in most cases, that would imply that generally there's not a huge range of different sizes - thanks again for the comments gents I'll get right on it.

thanks
Matt
htid85 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
awakepatriot
Hybrid Bicycles
5
03-16-19 07:17 PM
camp
Bicycle Mechanics
3
04-26-18 08:38 AM
Ai52487963
Bicycle Mechanics
4
03-21-13 10:27 PM
scozim
Classic & Vintage
6
08-08-10 08:22 PM
brockd15
Classic & Vintage
2
05-28-10 12:19 PM

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.