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 06-13-06, 10:33 AM   #1
LandLuger
bicyclist
Thread Starter
 
LandLuger's Avatar
 
Join Date: Feb 2006
Bikes:
Posts: 383
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Need a competent shop to face my disk brake mount

I've been tolerating the incessant rubbing of my front brake for months now on my newest bike. It is equiped with Magura Julies--hydraulic disks for those that aren't familiar. Anyway, the tabs on the front fork position the brake caliper too far inboard. In other words, shims aren't going to solve the problem rather material needs to be carefully removed from the fork mount to center the caliper over the disk. I've tried all the quick fixes like removing paint from the fork mount and "reseting" the caliper (per Magura's instruction) by holding the disk in place while an assistant squeezes the brake lever. But none of these techniques solve the problem for long.

I'm practically car free and all of the LBS are not equiped with the tools/skills to perform this surgery on my fork. Thus far I've been unwilling to make a several hundred mile trip to fix this aggrevating problem. My question is could I mail the front wheel and fork and brake to a shop that someone on this forum knew that could do the job correctly? Do I absolutely need to bring in the entire bike to get this corrected? Am I just better off getting a mechanical with more adjustments? Is a new, different brand of fork likely to solve the problem?
LandLuger is offline   Reply With Quote
Old 06-13-06, 12:53 PM   #2
Avalanche325
Senior Member
 
Avalanche325's Avatar
 
Join Date: Apr 2003
Location: Pasadena, CA
Bikes: Litespeed Firenze / GT Avalanche
Posts: 3,162
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
That is something for a machine shop, not an LBS, if it is that far off.
Avalanche325 is offline   Reply With Quote
Old 06-13-06, 12:58 PM   #3
LandLuger
bicyclist
Thread Starter
 
LandLuger's Avatar
 
Join Date: Feb 2006
Bikes:
Posts: 383
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
No, actually Magura sells a facing tool to bicycle shops that they will not offer to the public for whatever reasons. I've been told by Magura that "competent" shops have this tool. I suppose that makes my local shops that have been around for decades incompetent then?
LandLuger is offline   Reply With Quote
Old 06-13-06, 01:51 PM   #4
Avalanche325
Senior Member
 
Avalanche325's Avatar
 
Join Date: Apr 2003
Location: Pasadena, CA
Bikes: Litespeed Firenze / GT Avalanche
Posts: 3,162
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Factory certified incompetent. It dosen't get much better than that.
Avalanche325 is offline   Reply With Quote
Old 06-13-06, 02:32 PM   #5
singletracksSC
Guest
 
Bikes:
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
http://www.parktool.com/repair/readhowto.asp?id=137
  Reply With Quote
Old 06-13-06, 04:17 PM   #6
LandLuger
bicyclist
Thread Starter
 
LandLuger's Avatar
 
Join Date: Feb 2006
Bikes:
Posts: 383
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Big thanks! As a road cyclist I'm new to hyd. brakes, and had just about given up on the concept because of the tight tolerances and the crazy squealing. Now I know what to ask for for father's day.
LandLuger is offline   Reply With Quote
Old 06-13-06, 08:04 PM   #7
Dan Burkhart 
Senior member
 
Dan Burkhart's Avatar
 
Join Date: Oct 2004
Location: Oakville Ontario
Bikes:
Posts: 5,945
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 20 Post(s)
Quote:
Originally Posted by LandLuger
I've been tolerating the incessant rubbing of my front brake for months now on my newest bike. It is equiped with Magura Julies--hydraulic disks for those that aren't familiar. Anyway, the tabs on the front fork position the brake caliper too far inboard. In other words, shims aren't going to solve the problem rather material needs to be carefully removed from the fork mount to center the caliper over the disk. I've tried all the quick fixes like removing paint from the fork mount and "reseting" the caliper (per Magura's instruction) by holding the disk in place while an assistant squeezes the brake lever. But none of these techniques solve the problem for long.

I'm practically car free and all of the LBS are not equiped with the tools/skills to perform this surgery on my fork. Thus far I've been unwilling to make a several hundred mile trip to fix this aggrevating problem. My question is could I mail the front wheel and fork and brake to a shop that someone on this forum knew that could do the job correctly? Do I absolutely need to bring in the entire bike to get this corrected? Am I just better off getting a mechanical with more adjustments? Is a new, different brand of fork likely to solve the problem?
I have a facing tool in my shop, but they are only effective for calipers which mount without an adapter bracket. If I am not mistaken, the Magura does mount with a bracket, but this gives you another option. Determine how much you need to move the caliper and take the bracket to a machine shop and have that much milled off the mounting face.
Dan Burkhart
Dan Burkhart is offline   Reply With Quote
Old 06-13-06, 08:25 PM   #8
vw addict
Senior Member
 
vw addict's Avatar
 
Join Date: Jan 2006
Location: East coast
Bikes: Specialized Tarmac Expert, Cannondale R700, Specialized Langster, Iron Horse Hollowpoint Team, Schwinn Homegrown
Posts: 2,673
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
It dosen't take rocket science to figure out how to use a facing tool.
vw addict is offline   Reply With Quote
Old 06-13-06, 08:25 PM   #9
LandLuger
bicyclist
Thread Starter
 
LandLuger's Avatar
 
Join Date: Feb 2006
Bikes:
Posts: 383
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My Julies bolt directly to the fork.
LandLuger is offline   Reply With Quote
Old 06-13-06, 08:26 PM   #10
LandLuger
bicyclist
Thread Starter
 
LandLuger's Avatar
 
Join Date: Feb 2006
Bikes:
Posts: 383
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
True. But it takes a precision tool to face the surfaces perpendicular to the axle.

Quote:
Originally Posted by vw addict
It dosen't take rocket science to figure out how to use a facing tool.
LandLuger is offline   Reply With Quote
Old 06-13-06, 08:37 PM   #11
vw addict
Senior Member
 
vw addict's Avatar
 
Join Date: Jan 2006
Location: East coast
Bikes: Specialized Tarmac Expert, Cannondale R700, Specialized Langster, Iron Horse Hollowpoint Team, Schwinn Homegrown
Posts: 2,673
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by LandLuger
True. But it takes a precision tool to face the surfaces perpendicular to the axle.
Sorry the comment was towards Avalanche
vw addict 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 12:26 PM.