Advertise on Bikeforums.net



User Tag List

Results 1 to 7 of 7
  1. #1
    No longer in Wimbledon... womble's Avatar
    Join Date
    May 2005
    Location
    Hong Kong
    Posts
    867
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    What's a floating brake?

    I've been trying to figure this out for a while now- what does it mean when a disc brake is referred to as "floating"? And what are they like compared to designs which don't "float"?

  2. #2
    Long haired freak. wethepeople's Avatar
    Join Date
    Jun 2005
    Location
    Still stuck in hell.
    My Bikes
    2011 SE Old Man Flyer.
    Posts
    6,280
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    A break that isnt mounted directly to the frame, instead it is on a pivot.

    All they do is prevent break jack and look cool.

    Watch this: http://www.therapycomponents.com/FLOATING%20BRAKE.htm

    "the bus came by and I got on, that's when it all began...there was Cowboy Neal at the wheel of a bus to never-ever land."


  3. #3
    Senior Member Ray Dockrey's Avatar
    Join Date
    Nov 2005
    Location
    Mustang, OK
    Posts
    690
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I think what you are talking about is a floating caliper. On a normal single piston fixed caliper when you squeeze the brake lever the piston pushes against the rotor and then pushes the rotor against the opposite brake pad. On a floating caliper the piston pushes against the rotor. The force then slides the caliper over so the opposite pad can hit the rotor. So basically the caliper is floating over the rotor. This is the way most car brakes work.

  4. #4
    Senior Member
    Join Date
    Oct 2005
    Posts
    5,426
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    On motorcycles, a floating brake is a floating disc. Its loosely held to the hub by rivets. You grab it and you can move it around.
    Il faut de l'audace, encore de l'audace, toujours de l'audace

    1980 3Rensho-- 1975 Raleigh Sprite 3spd
    1990s Raleigh M20 MTB--2007 Windsor Hour (track)
    1988 Ducati 750 F1

  5. #5
    No longer in Wimbledon... womble's Avatar
    Join Date
    May 2005
    Location
    Hong Kong
    Posts
    867
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Heh- three different replies and three different answers

    And the weird thing is, I'm sure each one is right.

  6. #6
    biked well well biked's Avatar
    Join Date
    Jul 2005
    Posts
    6,780
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    A full-suspension frame with a floating disc brake assembly has a separate brake arm that "floats", allowing the brake to be less affected by the bike's suspension action. As far as I know, this type of design is used only on longer travel bikes, so that the braking action is smoother and not as affected by the long travel rear suspension.........btw, womble, is your moniker based on the beautiful Womble Trail in West-Central Arkansas? I've ridden that trail end-to-end many times. Beautiful views!
    Last edited by well biked; 11-07-06 at 12:08 AM.

  7. #7
    DEADBEEF khuon's Avatar
    Join Date
    Aug 2002
    Location
    Catching his breath alongside a road near Seattle, WA USA
    My Bikes
    1999 K2 OzM, 2001 Aegis Aro Svelte
    Posts
    12,155
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by well biked
    A full-suspension frame with a floating disc brake assembly has a separate brake arm that "floats", allowing the brake to be less affected by the bike's suspension action. As far as I know, this type of design is used only on longer travel bikes, so that the braking action is smoother and not as affected by the long travel rear suspension.
    Floating brakes assemblies also tend to be used on single-pivot designs because braking forces can jack the suspension due to the limited availability for locating the pivot that will allow the suspension to remain active for real hits yet cancel out both pedal-induced bobbing and brake-jack... especially with disc-brakes.

    This guy fabricated an awesome floating brake arm for his K2 OzM (retrofitted with an aluminum swingarm).

    1999 K2 OzM 2001 Aegis Aro Svelte OCP Club Member
    "Be liberal in what you accept, and conservative in what you send." -- Jon Postel, RFC1122

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •