Front brake buzzing
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Tourer
Joined: Mar 2007
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Front brake buzzing
Went on the CT Dream Ride today with my 06 streetbob. Generally whenever using the front brakes, I get a small buzzing sound when the handle is pulled in and the calipers squeeze...but today it seems to have gotten very pronounced..any clues? Normal for dynas? Brakes seem to be working fine...
Road Warrior
Joined: Jul 2006
Posts: 1,302
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From: SW Corner of NW Corner
RE: Front brake buzzing
slight segway here (mine does it to btw, just never thought much about it) - what exactly defines a "floating rotor" Vs a regular rotor? And is this something that has changed on Dyna's recently? How would I know I have a floating rotor? (mine is a 2005 WG)
Road Master
Joined: Jul 2006
Posts: 754
Likes: 2
From: New Bern, NC
RE: Front brake buzzing
The sound you hear also is the air going between the holes in the rotor as well.
As for the floating rotor/disc take a close look at how your rotor is attached. You will notice what looks like a steel rivet between the disk and the and the attachment point to the axle. These are seperated (two-piece) and allow for thermal expansion as your rotor heats up. Sometimes, with thermal expansion, the rotor will "grow" and can change the normal noise you hear. This helps with warping. A non-floating rotor is one piece, aka, your rear rotor. It has slots, pretty ingenious, which allows for rotor expansion.
As for the floating rotor/disc take a close look at how your rotor is attached. You will notice what looks like a steel rivet between the disk and the and the attachment point to the axle. These are seperated (two-piece) and allow for thermal expansion as your rotor heats up. Sometimes, with thermal expansion, the rotor will "grow" and can change the normal noise you hear. This helps with warping. A non-floating rotor is one piece, aka, your rear rotor. It has slots, pretty ingenious, which allows for rotor expansion.
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Supporter
Joined: Jan 2007
Posts: 15,788
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From: along the shore of Mishigami
RE: Front brake buzzing
once heard it was the sharp edges on the pads hitting the ventilation holes cast into the rotor. heard mine a few times on fast down hills in sturgis area coming up on slower baggers. slight pressure on occasion and the buzzing went away. haven't heard it since returning to home turf.
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Road Warrior
Joined: Dec 2006
Posts: 1,492
Likes: 1
From: MA
RE: Front brake buzzing
ORIGINAL: thrillseeker
slight segway here (mine does it to btw, just never thought much about it) - what exactly defines a "floating rotor" Vs a regular rotor? And is this something that has changed on Dyna's recently? How would I know I have a floating rotor? (mine is a 2005 WG)
slight segway here (mine does it to btw, just never thought much about it) - what exactly defines a "floating rotor" Vs a regular rotor? And is this something that has changed on Dyna's recently? How would I know I have a floating rotor? (mine is a 2005 WG)
you got a fixed rotor.
a floating rotor is not hard mounted to the wheel, but it has some "standoff" points that let it move around slightly
probably changed in 2006.
Outstanding HDF Member
Joined: Aug 2005
Posts: 2,042
Likes: 0
From: Brunswick, MD
RE: Front brake buzzing
ORIGINAL: thrillseeker
slight segway here (mine does it to btw, just never thought much about it) - what exactly defines a "floating rotor" Vs a regular rotor? And is this something that has changed on Dyna's recently? How would I know I have a floating rotor? (mine is a 2005 WG)
slight segway here (mine does it to btw, just never thought much about it) - what exactly defines a "floating rotor" Vs a regular rotor? And is this something that has changed on Dyna's recently? How would I know I have a floating rotor? (mine is a 2005 WG)
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