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  1. #1

    Member #
    4239
    Bike(s)
    1997 Honda CBR1100XX
    Join Date
    Jul 30 2008
    Location
    Ormond Beach FL
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    front brake rotor loose

    today i was tinkering and noticed my front brake rotor was loose and I could move it back and forth. I was wondering if this will cause anything to happen like, Im going down the road slam the brakes and the rotor could come off and id be on the roadside face first?? I looked at buying an oem one and they are the biggest rip off ever!! around 300 something. any help would be greatly appreciated. thanks!

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  3. #2

    Member #
    1728
    Bike(s)
    81,82,83 CBF's, 98 CBRxx, 07 CBR-1000RR/R, 83 FXSB
    Join Date
    Jun 03 2007
    Location
    Canada
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    2,862
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    Re: front brake rotor loose

    There are brake rotors that include a "full floater" design. The friction surface of the rotor is allowed to move while still remaining connected to the "carrier" portion that bolts to the front wheel. Stock rotors mimic this "full floater" design but do not provide enough clearance for the friction surface to actually move or rattle around on the carrier portion that bolts to the front wheel. The floater design is ment to allow the friction surface to better track the calipers and brake pads under heavy braking loads where heat may warp or deflect the friction surface somewhat.

    I believe that someone at one time offered a replacement rivit set to allow more movement in some of the stock rotors as come from the factory. This was to increase the performance of the stock rotors and to make them not only look like full floaters but to actually perform like them too. Lockhart-Philips might have been the vendor or this rivit sets...but don't quote me.

    My HRC 310mm disc on my 750 has cast iron friciton surfaces which float on magnessium carriers which are bolted to the front wheel. When not under braking loads the cast iron disc rattle around on the wheels they are that loose,..but it's all part of the design and function of the disc.

    Are your brake rotors stock or aftermarket?

    Also note, regardless of the vendor brake rotors can be rather spendy. My HRC race pieces went for $500.00 a side 25 years ago!

    Tony
    "Stemmata quid faciunt."

  4. #3

    Member #
    4239
    Bike(s)
    1997 Honda CBR1100XX
    Join Date
    Jul 30 2008
    Location
    Ormond Beach FL
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    Re: front brake rotor loose

    well its just the one rotor that is loose at the rivets that hold the friction part to the spoke thing. the other rotor is fine. to me a brake rotor shouldn't be like that. i work on cars and there is no way that that would fly. they are the stock rotors, but no one else I know has this problem.

    thats a rip off for rotors I mean you could buy like a set of high performance brembo brakes for a car for about that much. just think about it you get more material and better stuff for the same as one small rotor that is made from the same material?? weird huh??

  5. #4
    follically challenged
    Member #
    3044
    Bike(s)
    97 Honda CBR1100XX, 91 Kawasaki GPZ500S
    Join Date
    Feb 22 2008
    Location
    Salzburg
    Posts
    10,693
    Liked
    245 times

    Re: front brake rotor loose

    car rotors don´t get that hot. bikes have hot disks sometimes and the disk will expand, need room to move.

    car rotors do have more space between disk and pad. because of cars do have a brakebooster. bikes don´t: the less space you have the less way you have to transmit (lever principle) for same (more) power.

    for the rest: stick to what tony said.


    best would be you visit your mechanic.
    i still do if i am not sure about something. - but i´m learning and the visits get less and less every year ;-)

    (this was just a brake for coffee and some formulars... started carbonizing a speed tripple this night YYYYEEEAAAHHHHH!!!!)
    500px
    skype: heistinger
    twitter
    www.heisti.at

  6. #5

    Member #
    4239
    Bike(s)
    1997 Honda CBR1100XX
    Join Date
    Jul 30 2008
    Location
    Ormond Beach FL
    Posts
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    Re: front brake rotor loose

    well hopefully i can just find one somewhere for cheap and replace it. i know what the problem is (its loose) so now I just need to fix it.

    Car brakes get pretty hot too. Ever watch a race and at night you can see the rotors glow red. That is just way too cool!! I know normal cars dont really do that, im just saying.
    Thanks for the help guys!!


 

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