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 11-10-10, 01:53 PM   #1
slowandsteady
Faster but still slow
Thread Starter
 
slowandsteady's Avatar
 
Join Date: Jun 2006
Location: Jersey
Bikes: Trek 830 circa 1993 and a Fuji WSD Finest 1.0 2006
Posts: 5,979
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Shift cable to front DR suddenly very loose

On a 21 mile bike ride yesterday, my front DR suddenly stopped working. It was dark so I couldn't tell what happened and kept on riding the remaining 11 miles.

Once I got it home and took a look at it in the light, it was apparent that the shift cable was very slack. I checked it from the brifter to the DR and it appears to be intact and attached at both ends. I pulled on it from either direction and it doesn't seem to be broken.

I can't figure out what happened. Any ideas?
slowandsteady is offline   Reply With Quote
Old 11-10-10, 02:35 PM   #2
JTGraphics
Senior Member
 
JTGraphics's Avatar
 
Join Date: Dec 2006
Location: So Cal
Bikes:
Posts: 2,673
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
check guide under BB it may be cracked or FD slipped down check bolts.
Look good they crack along the cable line of path so remove and look if needed.
__________________
It may not be fancy but it gets me were I need to go.
http://www.jtgraphics.net/cyclist_bicycles.htm
JTGraphics is offline   Reply With Quote
Old 11-10-10, 02:36 PM   #3
Homebrew01
Super Moderator
 
Homebrew01's Avatar
 
Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Bikes: Old Steelies I made, Old Cannondales
Posts: 19,855
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 189 Post(s)
Or the cable slipped through the clamp on the derailleur. It might not have been quite tight enough.
__________________
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike
Homebrew01 is online now   Reply With Quote
Old 11-10-10, 02:41 PM   #4
slowandsteady
Faster but still slow
Thread Starter
 
slowandsteady's Avatar
 
Join Date: Jun 2006
Location: Jersey
Bikes: Trek 830 circa 1993 and a Fuji WSD Finest 1.0 2006
Posts: 5,979
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Okay, I will look closer at those things. Thanks!
slowandsteady is offline   Reply With Quote
Old 11-10-10, 05:37 PM   #5
reptilezs
Senior Member
 
Join Date: Sep 2004
Location: boston, ma
Bikes:
Posts: 2,852
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
housing exploded
reptilezs is offline   Reply With Quote
Old 11-10-10, 05:41 PM   #6
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Posts: 29,966
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 363 Post(s)
Also double check that the head hasn't pulled out of the lever by pulling it away from the frame and shifting against hand tension, the cable must move cleanly as you move the lever. If it does, the problem is downstream, most likely a loose FD pinch bolt. (you'll see marks on the wire where it slipped)
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline   Reply With Quote
Old 11-10-10, 06:25 PM   #7
bradtx
Senior Member
 
Join Date: Jun 2010
Location: Pearland, Texas
Bikes: Cannondale, Trek, Raleigh, Santana
Posts: 6,698
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 58 Post(s)
slowandsteady, Might be unlikely, but the cable housing may've become reseated.?

Brad
bradtx 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 09:25 AM.