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

Trek 7100 rear brake problem (related to spring I think)

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.

Trek 7100 rear brake problem (related to spring I think)

Old 09-21-08, 09:00 PM
  #1  
Wiggle
Senior Member
Thread Starter
 
Join Date: May 2008
Location: Halifax, NS
Posts: 279

Bikes: 2013 Jamis Ventura Sport, 2008 Trek 7100

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Trek 7100 rear brake problem (related to spring I think)

I was just testing a new seat on my bike when I noticed my rear brake lever wasn't returning to the normal position after I released it very quickly. The front lever would snap back, this one took about 2 seconds. So I disconnected the rear brake cable and applied pressure with my hand to both brakes: One snaps back quickly and the other side just sticks where I put it. I've pulled that break off the frame and I can't see anything visibly wrong with the spring or anything but I'm not entirely sure what to look for. The spring doesn't even move really, the rotating part with the screw adjustment moves independantly of it until it finally hits the spring and then spring refuses to compress even though it looks like it should.

Any advice?
Wiggle is offline  
Old 09-22-08, 06:02 AM
  #2  
Jay H
One less car
 
Jay H's Avatar
 
Join Date: Aug 2003
Location: The Berkshires, MA
Posts: 981

Bikes: '08 Soma Groove (commuter/long distance tourer), '97 Lemond Zurich (road commuter/tourer),'01 Seven Axiom Ti, '03 Look KG381i, '01 Santa Cruz Superlite X

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
That rotating part with the screw is supposed to be adjustable to give the return pressure to push the lever off the rim when you are not braking. Sounds like the one that isn't springing back is sticking. You should be able to adjust the screw there to change the pressure but if it is freely rotating and still not pushing the lever back, it could be just friction inside the brake lever on the brake post.

Brakes are fairly cheap, I just bought a new cheapo brakes for my commuter from Tektro for like $19 for one set. You can try to spray some dry lube inside and heck, you can spray the entire brake (don't spray the pads though) and see if that helps...

Jay
Jay H is offline  

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

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