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 05-21-07, 06:34 AM   #1
JOHN J
Senior Member
Thread Starter
 
JOHN J's Avatar
 
Join Date: Mar 2005
Location: upstate NY (eastern side)
Bikes: giant ATX 760, Falcon Road Bike (ss) custom marinoni tourismo (full dresser) ,
Posts: 600
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
changing rear shift cable to top vs bottom.

Good morning from the Chilly Northeast.

Im a clyde and have an AUTO SHIFTING problem every time I climb a serious hill , most likley due to bottom bracket flex.

I do not have this problem on my MTB , My MTB cables are all top routed.

My commuter is a surly Cross check and Im using bar cons.


My question is

[B]Are there any cable stops that clamp to the chain stays I know I can get cable stops for down tube but dont know what to do along chain stay my stop is underneath the chain stay.

Or any trick thats been done.

Many thanks

"John"

Last edited by JOHN J; 05-21-07 at 08:03 AM.
JOHN J is offline   Reply With Quote
Old 05-21-07, 08:37 AM   #2
TallRider
Senior Member
 
TallRider's Avatar
 
Join Date: Oct 2005
Location: Fresno, CA
Bikes:
Posts: 4,118
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
You never say what bike gives you the auto-shifting problem, but I'm assuming it's the Cross Check.
I'm also assuming the auto-shifting is on the rear cassette, not the front chainrings. But please confirm.
Are you confident in your rear-derailer adjustment? I'd be surprised if the Surly BB would flex enough to significantly change cable length. The required sideways motion to pull enough cable to shift to another cog would be enormous. Is the auto-shifting always in one direction? If so, perhaps the rear derailer cage is adjusted too far in that direction already?

As to your question, I'm guessing that there are cable stops that you can clamp on the frame to route cables how you want them. But before doing something like this, you should make sure that more obvious answers to the problem are crossed off the list of possibilities.
TallRider is offline   Reply With Quote
Old 05-21-07, 08:53 AM   #3
JOHN J
Senior Member
Thread Starter
 
JOHN J's Avatar
 
Join Date: Mar 2005
Location: upstate NY (eastern side)
Bikes: giant ATX 760, Falcon Road Bike (ss) custom marinoni tourismo (full dresser) ,
Posts: 600
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by timcupery
You never say what bike gives you the auto-shifting problem, but I'm assuming it's the Cross Check.
I'm also assuming the auto-shifting is on the rear cassette, not the front chainrings. But please confirm.
Are you confident in your rear-derailer adjustment? I'd be surprised if the Surly BB would flex enough to significantly change cable length. The required sideways motion to pull enough cable to shift to another cog would be enormous. Is the auto-shifting always in one direction? If so, perhaps the rear derailer cage is adjusted too far in that direction already?

As to your question, I'm guessing that there are cable stops that you can clamp on the frame to route cables how you want them. But before doing something like this, you should make sure that more obvious answers to the problem are crossed off the list of possibilities.
Thanks for the reply,

The auto shifting is on the cross check and rear cog only , front is fine. It always shifts to the next cog or two up then when I stop climbing it shifts back to where I had it in the first place. Ill play with the rear cage adjustment.
I use friction shift only (I prefer it) and under normal riding shifting is fine.

climbing is when the problem appears.

Im no tinker bell im 247lb and can put some serious preasure on a bb when out of the saddle.

many thanks

"John"

Last edited by JOHN J; 05-21-07 at 08:59 AM.
JOHN J 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 05:04 AM.