EVO All Evo Model Discussion

Brake rotor's

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Old May 28, 2013 | 07:48 PM
  #11  
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machinehed
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Originally Posted by Bullys FLSTN
The front rotor is warped slightly. I get a light squeal in one spot when I roll the bike slowly. I made sure it was the rotor and not something else. So was just wondering what year rotors would fit. Looking in catalogs (J&P) there are rotors that say 92 & up as well as model year specific.
Rolling the bike and listening for squealing sounds is not the way to do it .
Disk brake pads float when not under pressure and can produce noise when
you roll the bike .
You must do a proper run out check of the front disks if you suspect a warped rotor.
If you have not experienced any previous front end pulsations during braking then i would say your disks are ok. and a regular brake service is all you need.?
 
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Old May 28, 2013 | 08:29 PM
  #12  
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Originally Posted by machinehed
Rolling the bike and listening for squealing sounds is not the way to do it .
Disk brake pads float when not under pressure and can produce noise when
you roll the bike .
You must do a proper run out check of the front disks if you suspect a warped rotor.
If you have not experienced any previous front end pulsations during braking then i would say your disks are ok. and a regular brake service is all you need.?
Fact is, there is end play in the wheel bearings which can cause a "squeak" when rolling the bike as the wheel rolls with the weight of the bike on it.

To properly check runout, you need to put the bike on a lift and turn the forks to one side to load the wheel bearings in one direction. Then you use a dial indicator to measure the axial runout (warpage). Allowable limit is .008 per the service manual.
 
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