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'Thunk' in Front End

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Old Feb 7, 2015 | 01:24 PM
  #1  
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Default 'Thunk' in Front End

I understand the features of a floating brake disc, but I wonder how much movement is too much?

My bike has a noise ( thunk ) from the front end, when I compress the forks when the brake is applied. Doesn't seem to happen when the forks are compressed without the brake.

With the bike up on the stand, I can re-create the noise by locking the front brake, and rotating the wheel. I'm able to narrow it down to movement in the rivets on the disc.

Is there a spec for this, or should I just be looking at replacing the disc?
 
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Old Feb 7, 2015 | 06:31 PM
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Seems to be a common concern. Same with my 2011 wide glide. after My mechanic pointed it out, and I started ignoring it, it quit .
I even rebuilt my forks before giving in.
 
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Old Feb 7, 2015 | 09:25 PM
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Check the neck bearings. Sounds like they need to be adjusted.Mine did the samething thing. Do a search here, a lot off info on this subject
 
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Old Feb 7, 2015 | 10:10 PM
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Check your tank bolts. Front and rear.
 
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Old Feb 7, 2015 | 11:22 PM
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Mine does the same thing. I have looked at everything and had my dealership address the issue as well.. Nothing is abnormal is what I was told. I can't find anything myself.. and it brakes fine and bearings tight at the neck. I don't worry about it. Sounds pretty normal with these bikes as well.
 
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Old Feb 8, 2015 | 09:47 AM
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Thanks, guys... I'll give it a once-over again, while I have it up on the lift.
 
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