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

Brake Caliper releases (springs-out) when using INLINE brake lever but NOT STI Lever

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.

Brake Caliper releases (springs-out) when using INLINE brake lever but NOT STI Lever

Old 06-24-09, 04:26 AM
Senior Member
Thread Starter
SteelCan's Avatar
Join Date: May 2009
Location: So. Jersey
Posts: 596

Bikes: LeMond Reno

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Brake Caliper releases (springs-out) when using INLINE brake lever but NOT STI Lever

My road bike has inline brakes along w/9sp Tiagra STI.

I thought I became a brake mechanic wizard after I "thought" I was able to repair the rear brake, (I too aggressively cleaned my bike after a hard rain - trying to "floss" the brake calipers with a rag and popped the spring end)

I re-installed the spring (I did it properly making sure a tiny plastic piece on the end of the spring was in proper position - set against the "catch" on one of the calipers) and initially had trouble with the calipers releasing/springing-out after a pull.

I again removed the rear brake and quickly figured out why the calipers would NOT spring back - Too much tension on the nut that keeps the spring in place. Made a few tweaks, loosened the nut that held that spring in place and prevented the nut that mounts the entire brake caliper from placing too much tension on that "spring" nut. (there is a thick washer in between)

Now everything works fine (caliper instantly springs out) when using the inline brake BUT when using the STI brake lever, the calipers just seem to release ever so slightly.

Anyone know WTF I did wrong? (all worked OK before my "aggressive" cleaning)
Ps: Never adjusted cable tension.

Last edited by SteelCan; 06-24-09 at 11:20 AM.
SteelCan is offline  
Old 06-24-09, 07:50 AM
Senior Member
bikeman715's Avatar
Join Date: Mar 2008
Location: Salinas , Ca.
Posts: 2,646

Bikes: Bike Nashbar AL-1 ,Raligh M50 , Schwinn Traveler , and others

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 85 Post(s)
Liked 0 Times in 0 Posts
you may have dirt in the housing between the inline brake and your sti lever. the best thing to do is replace that piece of housing.you could try flushing it (the housing ) with WD-40 and drip some oil into it.but like i said the best thing to do is to replace it.
bikeman715 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 - 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.