Advertise on Bikeforums.net



User Tag List

Results 1 to 15 of 15
  1. #1
    Member damn's Avatar
    Join Date
    Jul 2004
    Posts
    47
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    "fancy" disc brake rotors

    i saw some dude today on Trek with some fancy disc rotors, it looked like flame or somethig
    do they perform like regular rotors? i have bent rotor at rear whell, so i was planning to get new rotor for a while now..
    can you point me to the website or something? thanks

    btw my rotors 160mm

  2. #2
    Wood Licker Maelstrom's Avatar
    Join Date
    Apr 2002
    Location
    Whistler,BC
    My Bikes
    Transition Dirtbag, Kona Roast 2002 and specialized BMX
    Posts
    16,888
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It also depends on thickness of the rotor. Each company uses a different thickness. As for where...I forget, there are a number of custom rotor makers

  3. #3
    I drink your MILKSHAKE Raiyn's Avatar
    Join Date
    Jul 2002
    Location
    St. Petersburg, FL
    My Bikes
    2003 Specialized Rockhopper FSR Comp, 1999 Specialized Hardrock Comp FS, 1971 Schwinn Varsity
    Posts
    15,071
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by damn
    i saw some dude today on Trek with some fancy disc rotors, it looked like flame or somethig
    do they perform like regular rotors? i have bent rotor at rear whell, so i was planning to get new rotor for a while now..
    can you point me to the website or something? thanks

    btw my rotors 160mm
    http://www.universalcycles.com/shopp...68&category=27
    I have a set of these and I like them just fine. I've noticed a bit of an effect on braking for the better. I could have with a $15 Diacompe replacement rotor and been fine, but what the heck I got them wholesale so what do I care? They look killer in my opinion.

    Last edited by Raiyn; 11-18-04 at 11:58 AM.

  4. #4
    The Man. FoX Rider's Avatar
    Join Date
    Jun 2004
    Location
    Sitting
    My Bikes
    Haro Extreme X3 with Hayes Mags and Evil DRS
    Posts
    1,070
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    That is a sweet looking rotor. Mine is round...

  5. #5
    Ride bike or bike ride? Hopper's Avatar
    Join Date
    Oct 2003
    Location
    Adelaide, Australia
    My Bikes
    MongoosePro DH, Dart custom road bike, .243 Racing FR street bike
    Posts
    1,447
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Where does it actually grip the rotor? There is no patr on that rotor, that I can see, that is the same distance from the centre fo the whole 360 degrees.
    --------------------------------------------------------o__ ----
    ------------------------_-------_---|-\---------_---- _.>/ _ --------------
    _______________________| - \________(_)_\(_)_______\|/_______\|/______...

    Quote Originally Posted by Hilltop Hoods
    Aint it amazing how courageous human beings are?

  6. #6
    Hucker Extraordinare BigHit-Maniac's Avatar
    Join Date
    Nov 2002
    Location
    Lenexa, KS
    Posts
    585
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Erm... isn't that on backwards? I thought the "fingers" were supposed to point forward... at least that's how the moto guys run em'

    -Matt
    Got Nine Inches ? Cuz I do. http://67.19.50.55/forums/images/smilies/eviltongue.gif

    AIM: MtnBikeHucker

  7. #7
    Chairman of the Bored catatonic's Avatar
    Join Date
    May 2004
    Location
    St. Petersburg, FL
    My Bikes
    2004 Raleigh Talus, 2001 Motobecane Vent Noir (Custom build for heavy riders)
    Posts
    5,825
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I doubt the fingers make any difference, after all it's a (somewhat) round rotor moving around between two friction plates. Either way, it's a cool looking rotor.

    I jsut wish that my rotors didn't have the mirror polish that builds up on them after a while of use.

  8. #8
    Wood Licker Maelstrom's Avatar
    Join Date
    Apr 2002
    Location
    Whistler,BC
    My Bikes
    Transition Dirtbag, Kona Roast 2002 and specialized BMX
    Posts
    16,888
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    it would make a difference on cooling. Just like standard discs have a certain way to spin to reduce warping and increase its ability to cool...

    but yeah they are cool looking

  9. #9
    I drink your MILKSHAKE Raiyn's Avatar
    Join Date
    Jul 2002
    Location
    St. Petersburg, FL
    My Bikes
    2003 Specialized Rockhopper FSR Comp, 1999 Specialized Hardrock Comp FS, 1971 Schwinn Varsity
    Posts
    15,071
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    I've tried them both ways and this way works better for me. There's another reason I run them this direction: flex. The way disc rotors flex in my mind its better to have the tooth ramp into and across the pad from this direction because the leading edge of the tooth moves across the pad in sort of a snowplow pattern maximizing the gradual sweep effect as opposed to having the flat edge chip the brake pad as it is bent into line. (Destroyed a set of pads this way) This way the forward most point of the pad moves outward pulling the point more into alignment terminating at the point of the tooth rather than the point starting things off. As for the Moto guys they don't care, they look more aggro the other way so what if they chew pads.
    Quote Originally Posted by Hopper
    Where does it actually grip the rotor? There is no patr on that rotor, that I can see, that is the same distance from the centre fo the whole 360 degrees.
    Not sure I follow ya there Cheif they grip the same way as a normal disc only these allow for a sweeping motion that allows better heat distribution / disapation. (not like that matters on a mechanical setup)

  10. #10
    Ride bike or bike ride? Hopper's Avatar
    Join Date
    Oct 2003
    Location
    Adelaide, Australia
    My Bikes
    MongoosePro DH, Dart custom road bike, .243 Racing FR street bike
    Posts
    1,447
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Sorry I wasn't clear, i think you answered my question. What I meant was, ther is no part on surface ob tha rotor that is where the pad would grip, that is shaped like a normal circle ie not wavy.

    What I think you said is that the pads grip the wavy part, and this helps it keep cool. If correct tell me, if not or you don't understand don't worry, I can't think of another way to explain it.
    --------------------------------------------------------o__ ----
    ------------------------_-------_---|-\---------_---- _.>/ _ --------------
    _______________________| - \________(_)_\(_)_______\|/_______\|/______...

    Quote Originally Posted by Hilltop Hoods
    Aint it amazing how courageous human beings are?

  11. #11
    My life be like ooh aah anthonaut's Avatar
    Join Date
    Apr 2003
    Location
    Adelaide, Australia
    My Bikes
    Giant Boulder SE 2000, Craftworks FRM125 2002
    Posts
    1,409
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    wow hopper, ease up. This is getting confusing. Basically there is always SOME part of the rotor the caliper can grab, otherwise it wouldnt work. Simple.
    Any true downhiller can huck, but no hucker can truly downhill - Ryan N.

    Mtbworld - http://mtbworld.mybesthost.com

  12. #12
    GIANT
    Join Date
    Apr 2004
    My Bikes
    2004 giant xtc3
    Posts
    105
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    i think hopper is just trying to say the contact patch (pads to rotor) on that rotor ain't too big, creating less friction, less braking power than most other conventional disc rotors. Don't take me wrong, they are nice brakes though

  13. #13
    I drink your MILKSHAKE Raiyn's Avatar
    Join Date
    Jul 2002
    Location
    St. Petersburg, FL
    My Bikes
    2003 Specialized Rockhopper FSR Comp, 1999 Specialized Hardrock Comp FS, 1971 Schwinn Varsity
    Posts
    15,071
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Hopper
    Sorry I wasn't clear, i think you answered my question. What I meant was, there is no part on surface ob that rotor that is where the pad would grip, that is shaped like a normal circle ie not wavy.

    What I think you said is that the pads grip the wavy part, and this helps it keep cool. If correct tell me, if not or you don't understand don't worry, I can't think of another way to explain it.
    That's the gist of it. There's actually about the same amount of contact area on a wavy rotor as there is on a regular rotor. Instead of holes in the rotor surface as on "normal" rotors these use the wave effect to cool them. If they didn't have something to dissipate heat there would be warpage as in the case of solid discs due to the fact that they aren't able to dissipate heat as well.
    Last edited by Raiyn; 08-10-04 at 03:16 AM.

  14. #14
    Ride bike or bike ride? Hopper's Avatar
    Join Date
    Oct 2003
    Location
    Adelaide, Australia
    My Bikes
    MongoosePro DH, Dart custom road bike, .243 Racing FR street bike
    Posts
    1,447
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks, I finally get it
    --------------------------------------------------------o__ ----
    ------------------------_-------_---|-\---------_---- _.>/ _ --------------
    _______________________| - \________(_)_\(_)_______\|/_______\|/______...

    Quote Originally Posted by Hilltop Hoods
    Aint it amazing how courageous human beings are?

  15. #15
    I drink your MILKSHAKE Raiyn's Avatar
    Join Date
    Jul 2002
    Location
    St. Petersburg, FL
    My Bikes
    2003 Specialized Rockhopper FSR Comp, 1999 Specialized Hardrock Comp FS, 1971 Schwinn Varsity
    Posts
    15,071
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Hopper
    Thanks, I finally get it
    I try.

Posting Permissions

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