Re: [RBW] Really not too off topic: disk brake question

2012-08-10 Thread Mark Chandler
Truing rotors can be pretty difficult.  Before attempting to true a rotor,
always make sure that the mounting bolts are properly tightened.

I've also found that this stuff works well for getting rid of flutter:

http://www.gravelbike.com/?p=1177

On Thu, Aug 9, 2012 at 6:15 PM, Jim Mather mather...@gmail.com wrote:

 Park actually makes a rotor truing tool:
 http://www.parktool.com/product/rotor-truing-fork-dt-2

 And a Youtube how to:  http://www.youtube.com/watch?v=nHdQkm14JVw

 jim m
 wc ca

 On Thu, Aug 9, 2012 at 3:35 PM, Peter Morgano uscpeter11...@gmail.com
 wrote:
  I had a smiliar problem on a Giant Traverse (I know, I know) that used
 to be
  my around town ride. LBS said that if you were good with soft hammer on a
  work bench/bench vise you could do it but really to just buy new discs if
  you want it to be perfect.
 
  On Thu, Aug 9, 2012 at 6:31 PM, PATRICK MOORE bertin...@gmail.com
 wrote:
 
  I say not too off topic since the brakes in question are on the
  Fargo which is quite Rivendellianishly (gad, how's that for a cobbled
  together adverb? Rivishly?) set up and, moreover, the disks are really
  the only brakes that will allow quick wheel changes between 27 mm rims
  and 44 mm rims.
 
  Anyway: The front Avid BB7 rotor has been bent and rebent and is now
  rather wavy and just barely nicks the pads as it goes by -- so
  slightly that feathering the brake will stop it for a half mile or so;
  but it comes back. I don't want to back off the pads any further. Does
  anyone have any instructions or can anyone point me to instructions on
  the web for getting a slightly wavy disk (160 mm) back into plane?
 
  The exactly similar disk on the Kojak wheelset is centered fine, as
  are both rears.
 
  The shish-shish-shish sound was rather annoying just now on my
 afternoon
  ride.
 
  Thanks.
 
  --
  When in Rome, do as they done in Milledgeville.
 
  Flannery O'Connor
 
  -
  Patrick Moore, Albuquerque, NM, USA
  For professional resumes, contact Patrick Moore, ACRW
  http://resumespecialties.com/index.html
  -
 
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Re: [RBW] Really not too off topic: disk brake question

2012-08-10 Thread PATRICK MOORE
Thanks; must look at those bolts. And I'll remember Squeal Out if a
rotor starts squealing.

Maybe I'll remove the rotor, place it on a metal slab, and beat the
hell out of it. It will make me feel good, even if it does no good to
the rotor. I'm glad I no longer have 185s or whatever -- more chance
of bending.

That -- bending -- is the sole liability of disks, at least mechanical
ones (I've not used hydraulics). I used to shove wheels in the back of
the car, or else sling them up against a wall and this front rotor has
paid the price before I realized I had to be careful. Also they don't
modulate as well as my goodest calipers (single pivots -- old SunTour
S Pro? -- with worn in Kool stops are as good as any dual pivot I've
used, and modulate better) or nice wide profile cantis but otherwise
they are very nice for fast wheel swaps and not worrying about
grinding down expensive rims during sand riding and no g-dum housing
hangars, balky QR mechs, and such.

On Thu, Aug 9, 2012 at 8:41 PM, Mark Chandler i.ride.gra...@gmail.com wrote:
 Truing rotors can be pretty difficult.  Before attempting to true a rotor,
 always make sure that the mounting bolts are properly tightened.

 I've also found that this stuff works well for getting rid of flutter:

 http://www.gravelbike.com/?p=1177


 On Thu, Aug 9, 2012 at 6:15 PM, Jim Mather mather...@gmail.com wrote:

 Park actually makes a rotor truing tool:
 http://www.parktool.com/product/rotor-truing-fork-dt-2

 And a Youtube how to:  http://www.youtube.com/watch?v=nHdQkm14JVw

 jim m
 wc ca

 On Thu, Aug 9, 2012 at 3:35 PM, Peter Morgano uscpeter11...@gmail.com
 wrote:
  I had a smiliar problem on a Giant Traverse (I know, I know) that used
  to be
  my around town ride. LBS said that if you were good with soft hammer on
  a
  work bench/bench vise you could do it but really to just buy new discs
  if
  you want it to be perfect.
 
  On Thu, Aug 9, 2012 at 6:31 PM, PATRICK MOORE bertin...@gmail.com
  wrote:
 
  I say not too off topic since the brakes in question are on the
  Fargo which is quite Rivendellianishly (gad, how's that for a cobbled
  together adverb? Rivishly?) set up and, moreover, the disks are really
  the only brakes that will allow quick wheel changes between 27 mm rims
  and 44 mm rims.
 
  Anyway: The front Avid BB7 rotor has been bent and rebent and is now
  rather wavy and just barely nicks the pads as it goes by -- so
  slightly that feathering the brake will stop it for a half mile or so;
  but it comes back. I don't want to back off the pads any further. Does
  anyone have any instructions or can anyone point me to instructions on
  the web for getting a slightly wavy disk (160 mm) back into plane?
 
  The exactly similar disk on the Kojak wheelset is centered fine, as
  are both rears.
 
  The shish-shish-shish sound was rather annoying just now on my
  afternoon
  ride.
 
  Thanks.
 
  --
  When in Rome, do as they done in Milledgeville.
 
  Flannery O'Connor
 
  -
  Patrick Moore, Albuquerque, NM, USA
  For professional resumes, contact Patrick Moore, ACRW
  http://resumespecialties.com/index.html
  -
 
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-- 
When in Rome, do as they done in Milledgeville.

Flannery O'Connor

-
Patrick Moore, Albuquerque, NM, USA
For professional resumes, contact Patrick Moore, ACRW
http://resumespecialties.com/index.html
-

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[RBW] Really not too off topic: disk brake question

2012-08-09 Thread PATRICK MOORE
I say not too off topic since the brakes in question are on the
Fargo which is quite Rivendellianishly (gad, how's that for a cobbled
together adverb? Rivishly?) set up and, moreover, the disks are really
the only brakes that will allow quick wheel changes between 27 mm rims
and 44 mm rims.

Anyway: The front Avid BB7 rotor has been bent and rebent and is now
rather wavy and just barely nicks the pads as it goes by -- so
slightly that feathering the brake will stop it for a half mile or so;
but it comes back. I don't want to back off the pads any further. Does
anyone have any instructions or can anyone point me to instructions on
the web for getting a slightly wavy disk (160 mm) back into plane?

The exactly similar disk on the Kojak wheelset is centered fine, as
are both rears.

The shish-shish-shish sound was rather annoying just now on my afternoon ride.

Thanks.

-- 
When in Rome, do as they done in Milledgeville.

Flannery O'Connor

-
Patrick Moore, Albuquerque, NM, USA
For professional resumes, contact Patrick Moore, ACRW
http://resumespecialties.com/index.html
-

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Re: [RBW] Really not too off topic: disk brake question

2012-08-09 Thread Peter Morgano
I had a smiliar problem on a Giant Traverse (I know, I know) that used to
be my around town ride. LBS said that if you were good with soft hammer on
a work bench/bench vise you could do it but really to just buy new discs if
you want it to be perfect.

On Thu, Aug 9, 2012 at 6:31 PM, PATRICK MOORE bertin...@gmail.com wrote:

 I say not too off topic since the brakes in question are on the
 Fargo which is quite Rivendellianishly (gad, how's that for a cobbled
 together adverb? Rivishly?) set up and, moreover, the disks are really
 the only brakes that will allow quick wheel changes between 27 mm rims
 and 44 mm rims.

 Anyway: The front Avid BB7 rotor has been bent and rebent and is now
 rather wavy and just barely nicks the pads as it goes by -- so
 slightly that feathering the brake will stop it for a half mile or so;
 but it comes back. I don't want to back off the pads any further. Does
 anyone have any instructions or can anyone point me to instructions on
 the web for getting a slightly wavy disk (160 mm) back into plane?

 The exactly similar disk on the Kojak wheelset is centered fine, as
 are both rears.

 The shish-shish-shish sound was rather annoying just now on my afternoon
 ride.

 Thanks.

 --
 When in Rome, do as they done in Milledgeville.

 Flannery O'Connor

 -
 Patrick Moore, Albuquerque, NM, USA
 For professional resumes, contact Patrick Moore, ACRW
 http://resumespecialties.com/index.html
 -

 --
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 RBW Owners Bunch group.
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Re: [RBW] Really not too off topic: disk brake question

2012-08-09 Thread Jim Mather
Park actually makes a rotor truing tool:
http://www.parktool.com/product/rotor-truing-fork-dt-2

And a Youtube how to:  http://www.youtube.com/watch?v=nHdQkm14JVw

jim m
wc ca

On Thu, Aug 9, 2012 at 3:35 PM, Peter Morgano uscpeter11...@gmail.com wrote:
 I had a smiliar problem on a Giant Traverse (I know, I know) that used to be
 my around town ride. LBS said that if you were good with soft hammer on a
 work bench/bench vise you could do it but really to just buy new discs if
 you want it to be perfect.

 On Thu, Aug 9, 2012 at 6:31 PM, PATRICK MOORE bertin...@gmail.com wrote:

 I say not too off topic since the brakes in question are on the
 Fargo which is quite Rivendellianishly (gad, how's that for a cobbled
 together adverb? Rivishly?) set up and, moreover, the disks are really
 the only brakes that will allow quick wheel changes between 27 mm rims
 and 44 mm rims.

 Anyway: The front Avid BB7 rotor has been bent and rebent and is now
 rather wavy and just barely nicks the pads as it goes by -- so
 slightly that feathering the brake will stop it for a half mile or so;
 but it comes back. I don't want to back off the pads any further. Does
 anyone have any instructions or can anyone point me to instructions on
 the web for getting a slightly wavy disk (160 mm) back into plane?

 The exactly similar disk on the Kojak wheelset is centered fine, as
 are both rears.

 The shish-shish-shish sound was rather annoying just now on my afternoon
 ride.

 Thanks.

 --
 When in Rome, do as they done in Milledgeville.

 Flannery O'Connor

 -
 Patrick Moore, Albuquerque, NM, USA
 For professional resumes, contact Patrick Moore, ACRW
 http://resumespecialties.com/index.html
 -

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