Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

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.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 05-30-07, 09:44 AM   #1
Buglady
Senior Member
Thread Starter
 
Buglady's Avatar
 
Join Date: Apr 2007
Location: Calgary
Bikes: 2013 MEC Col Ltd. road bike; 2012 MEC Silhouette hybrid; 2001 Specialized Allez (too small); 1984 Raleigh 5-speed city bike; 1985 Boyes-Rosser tourer; 1976 Raleigh Twenty folding bike; 1988 (?) Kuwahara "Blaze" mountain bike
Posts: 2,303
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Replace spring in V-brake?

Does anyone know if it is possible to buy just a replacement spring for Shimano V-brakes, or am I going to have to replace the entire assembly? One of the springs in my rear brake broke off halfway home yesterday (the one on the side where the brake cable anchors). It looks like simple metal fatigue.

Good thing I was already planning to pick up my "new" backup commuting bike (1984 Raleigh tourer) today... didn't expect to need it so soon though!

Thanks!
Kim
Buglady is offline   Reply With Quote
Old 05-30-07, 10:18 AM   #2
Stacey
Non Tribuo Anus Rodentum and off to the next adventure (RIP)
 
Stacey's Avatar
 
Join Date: Dec 2002
Bikes:
Posts: 9,162
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Kim, I have a whole passle of brake springs. If you post a photo of your spring, maybe I can match something up and send it your way.
__________________
Stacey is offline   Reply With Quote
Old 05-30-07, 10:26 AM   #3
Buglady
Senior Member
Thread Starter
 
Buglady's Avatar
 
Join Date: Apr 2007
Location: Calgary
Bikes: 2013 MEC Col Ltd. road bike; 2012 MEC Silhouette hybrid; 2001 Specialized Allez (too small); 1984 Raleigh 5-speed city bike; 1985 Boyes-Rosser tourer; 1976 Raleigh Twenty folding bike; 1988 (?) Kuwahara "Blaze" mountain bike
Posts: 2,303
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks, I'll see what I can do with the digital camera tonight!
Buglady is offline   Reply With Quote
Old 05-30-07, 10:53 AM   #4
Stacey
Non Tribuo Anus Rodentum and off to the next adventure (RIP)
 
Stacey's Avatar
 
Join Date: Dec 2002
Bikes:
Posts: 9,162
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You're welcome.
__________________
Stacey is offline   Reply With Quote
Old 05-30-07, 09:37 PM   #5
Michel Gagnon
Year-round cyclist
 
Join Date: Apr 2002
Location: Montréal (Québec)
Bikes:
Posts: 3,023
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Are you sure the spring is actually broken?

Inside each post of a typical v-brake, there is a coiled spring. If you ride a lot under dirty conditions, and especially in Winter, the arm and spring assembly gets very dirty and doesn't spring back easily. The cure:

- Unhook the brake cable.

- Remove the bolt which acts as a pivot for each arm.

- Pull the arm out.

- Clean the pivot, spring and the cavity in the v-brake where the pivot sits (WD-40 does a good job).

- Grease and re-assemble.

I typically have to do that every 2 years on my single bike which travels about 8000 km per year, including lots of winter mileage.
Michel Gagnon is offline   Reply With Quote
Old 05-31-07, 03:59 AM   #6
Stacey
Non Tribuo Anus Rodentum and off to the next adventure (RIP)
 
Stacey's Avatar
 
Join Date: Dec 2002
Bikes:
Posts: 9,162
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Michel Gagnon
Are you sure the spring is actually broken?
Looking again at the OP Michel, I'd say yes the spring is broken.

Quote:
Originally Posted by buglady
It looks like simple metal fatigue.
__________________
Stacey is offline   Reply With Quote
Old 05-31-07, 10:51 AM   #7
Buglady
Senior Member
Thread Starter
 
Buglady's Avatar
 
Join Date: Apr 2007
Location: Calgary
Bikes: 2013 MEC Col Ltd. road bike; 2012 MEC Silhouette hybrid; 2001 Specialized Allez (too small); 1984 Raleigh 5-speed city bike; 1985 Boyes-Rosser tourer; 1976 Raleigh Twenty folding bike; 1988 (?) Kuwahara "Blaze" mountain bike
Posts: 2,303
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Michel Gagnon
Are you sure the spring is actually broken?
Something that started out in one piece, and is now in two pieces, qualifies as broken in my book... however, thanks for the maintenance tips. I will keep those in mind.
Buglady is offline   Reply With Quote
Old 05-31-07, 01:47 PM   #8
Coyote!
Guest
 
Bikes:
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
Just for grins, what if Bug' wanted to purchase just the spring? Where could she go? LBS? On-line?
  Reply With Quote
Old 05-31-07, 02:06 PM   #9
Stacey
Non Tribuo Anus Rodentum and off to the next adventure (RIP)
 
Stacey's Avatar
 
Join Date: Dec 2002
Bikes:
Posts: 9,162
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
LBS probably has a box full.
__________________
Stacey is offline   Reply With Quote
Old 06-01-07, 11:10 PM   #10
Michel Gagnon
Year-round cyclist
 
Join Date: Apr 2002
Location: Montréal (Québec)
Bikes:
Posts: 3,023
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Stacey
Looking again at the OP Michel, I'd say yes the spring is broken.

Usually yes indeed!

It's just that I had the "brake arm sticking as if the spring were broken when it was not broken" a few times. It's one of the consequences of riding in the snow. Good luck in your search of the proper spring.
Michel Gagnon is offline   Reply With Quote
Old 06-04-07, 01:16 PM   #11
Buglady
Senior Member
Thread Starter
 
Buglady's Avatar
 
Join Date: Apr 2007
Location: Calgary
Bikes: 2013 MEC Col Ltd. road bike; 2012 MEC Silhouette hybrid; 2001 Specialized Allez (too small); 1984 Raleigh 5-speed city bike; 1985 Boyes-Rosser tourer; 1976 Raleigh Twenty folding bike; 1988 (?) Kuwahara "Blaze" mountain bike
Posts: 2,303
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Update: LBS didn't have any springs (and I couldn't get the brake apart to get the spring out anyway) but they did have a spare pair of the same brakes from someone doing an upgrade, and sold them to me for $10. I was pretty happy with that compared to a new-in-box pair for $30! So I attached those yesterday and all is well.

Thanks again for the offer, Stacey! I appreciate it
Buglady is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 09:22 AM.