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 01-05-10, 06:51 AM   #1
nitropowered
Senior Member
Thread Starter
 
Join Date: Dec 2004
Location: Athens, Ohio
Bikes: Custom Custom Custom
Posts: 5,104
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
XT M775 Disc Brake problems

Yesterday I went out to ride and by the second half of the ride, my rear disc brake lever was acting up. Normally it doesn't engage till I pull the lever about a cm but it became Instant brake. Braking power wasn't effected though.

I don't know, maybe it is the Temperature. It was 25F yesterday but when I rode a few days earlier, it was no more than 20F. Yesterday there was a bit more fluffy snow on the trail though.

Any thoughts?
nitropowered is offline   Reply With Quote
Old 01-05-10, 08:33 AM   #2
well biked 
biked well
 
well biked's Avatar
 
Join Date: Jul 2005
Bikes:
Posts: 7,088
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)
Quote:
Originally Posted by nitropowered View Post
Yesterday I went out to ride and by the second half of the ride, my rear disc brake lever was acting up. Normally it doesn't engage till I pull the lever about a cm but it became Instant brake. Braking power wasn't effected though.

I don't know, maybe it is the Temperature. It was 25F yesterday but when I rode a few days earlier, it was no more than 20F. Yesterday there was a bit more fluffy snow on the trail though.

Any thoughts?
One of my co-workers commented the other day about how his (Shimano hydraulic) disc brakes were acting kind of strange when he was riding in sub-freezing temps. I remember he said they had a different feel, but I don't remember exactly what he said the difference was. Based on that, I would say it's quite possible the temperature was the cause of your brakes' different feel.

We don't ride too much in subfreezing temps around here, so this isn't something we deal with very often.

Last edited by well biked; 01-05-10 at 08:36 AM.
well biked is offline   Reply With Quote
Old 01-05-10, 08:54 AM   #3
well biked 
biked well
 
well biked's Avatar
 
Join Date: Jul 2005
Bikes:
Posts: 7,088
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)
Now that I've thought about it, my friend said his brake calipers/levers didn't seem to rebound normally in the cold temps, in other words, they felt sluggish in this way. I wonder if your brakes feel as if they're engaging much more quickly at the lever because they're not rebounding much from the last time you engaged them.
well biked 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 11:59 AM.