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Front brakes pulsating

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Old Jan 16, 2013 | 07:08 PM
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Sarge1's Avatar
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Default Front brakes pulsating

A few months ago my 2011 SG started pulsating in the front brakes. It occurred in the middle of a 3000 mile ride to Bar Harbor ME. We I got home, I took it to the dealer and after a day in the shop, I got stuck with a $45 bill for 'cleaning the brake pads and rotors.' I rode it home and the pulsating was still there, but not as prominant. I put about 500 more miles on it and it was still doing the same thing so I took it back. Spoke to the mechanic and even he said its not right and shouldn't do that, but during the run-out check of the rotors, they measured out within limits. Harley won't replace the rotors or brakes because 'everything is within acceptable limits.' Now maybe I'm being picky, but my 1997 Springer doesn't pulsate, my buddies 2011 Road Glide doesn't pulsate... actually, I've asked numerous people who ride and they all tell me the same thing... sounds like your rotors are warped. BUT, "they are within Harley Davidson's acceptable limits, so there is nothing wrong." My question is this... anyone else having this problem? A little background, the bike has almost 16,000 miles on it. I will admit I'm an aggressive rider, but not obnoxious. It just doesn't make sense to me...
 
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Old Jan 16, 2013 | 07:11 PM
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Any known way to make the rotors warp so that they are outside the tolerances?
 
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Old Jan 16, 2013 | 07:15 PM
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Could be warped rotor or the ABS is acting up, if you have ABS? The techs are traind to say that. Its ok, they all do it, or its within Harleys spics.
 
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Old Jan 16, 2013 | 07:34 PM
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Mine did the same thing and when I took it in to my dealer they told me the same thing. HD set the run out tolerance at 11 thou. One of mine was at 9 and the other was at 6. They replaced the 9 and turn it in to HD at 12 and adjusted the other to get it to 3. Thanks to a good dealer who was willing to take care of a customer I no longer have that issue.
Good luck with yours.
 
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Old Jan 16, 2013 | 07:48 PM
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My HD floating rotors are warped a little. I don't let it bother me much, although I don't like it at all. It's only really apparent when braking hard at higher speeds.
 
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Old Jan 16, 2013 | 08:08 PM
  #6  
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Can HD rotors be "turned" on a lathe and retrued like car rotors or is it just replace them when the runout gets to be too much ?
 
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Old Jan 16, 2013 | 08:12 PM
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Can't be turned there isn't enough meat on them. I had the same problem on my 2011, pulsing and grabbing at low speed stops, i hated the feeling I had aftermarket polished rotors and they were warped. I switched to a floating rotor and the problem was solved.
 
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Old Jan 16, 2013 | 08:14 PM
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Another thing to consider, that I have learned from my Buells. When rotors are hot, like after a sudden stop, if you come to the stop and then hold the front brake on, the pads can leave a sticky spot on the rotor, causing a grabby spot.
The Buells with the huge rotor were notorious for this, but I seem to have it on my Road King.
A sanding of the rotors can help it.
 
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Old Jan 16, 2013 | 08:42 PM
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Have them check the runout when they are hot and see if its still in spec!
 
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Old Jan 16, 2013 | 08:49 PM
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My Dodge does this, but I don't care...it's a Dodge.
 
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