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  1. #1
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    Need Help Identifying These Hayes Disc Brakes

    I recently purchased a 1998 Schwinn Homegrown All Mountain XLT. I need help identifying the Hayes hydraulic disc brakes. Both brakes say Hayes but don't carry a model number. The rear has "3547" engraved on the inside edge.

    I've been to Heritage Products | Hayes Disc Brake. These brakes don't appear in any of their photos.

    Any help would be greatly appreciated. The brakes need servicing.....at least pads and bleeding, maybe more.
    Attached Thumbnails Attached Thumbnails Need Help Identifying These Hayes Disc Brakes-1-hayes-rear.jpg  

    Need Help Identifying These Hayes Disc Brakes-2-hayes-rear.jpg  

    Need Help Identifying These Hayes Disc Brakes-3-hayes-front.jpg  

    Need Help Identifying These Hayes Disc Brakes-4-hayes-front.jpg  


  2. #2
    Schipperkes are cool.
    Reputation: banks's Avatar
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    "Purple" versions, first real retail Hayes aka G1
    Use the small plastic funnel at the master to bleed. Syringe at the caliper. Easy.
    Pads, caliper kits, hoses are the same as G2. There are some variations of the master cylinders though.
    BTI shows caliper parts, but masters are gone. You can use G2 aka HFX Master cylinders/levers.
    Quote Originally Posted by mikesee
    Better suited to non-aggressive 125# gals named Russell.

  3. #3
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    Quote Originally Posted by banks View Post
    "Purple" versions, first real retail Hayes aka G1
    Use the small plastic funnel at the master to bleed. Syringe at the caliper. Easy.
    Pads, caliper kits, hoses are the same as G2. There are some variations of the master cylinders though.
    BTI shows caliper parts, but masters are gone. You can use G2 aka HFX Master cylinders/levers.
    Great info. Thanks.

    What is BTI?

  4. #4
    Give it a crank
    Reputation: Mtn-Rider's Avatar
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    Nice find! I have a similar set of those same brakes. They do a good job but lack the finese of newer brake models. I use pads for HFX-Mag.


  5. #5
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    I have several bikes worth of the original purple-logo brakes sitting here, some with that unique 22 mm caliper mount.

    Were they just called Hayes Mag brakes? Does that correctly describe the material they were cast from? I remember when the first appeared on a Trek 8900 with the original SID fork.

  6. #6
    All Lefty's, all the time Moderator
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    Quote Originally Posted by DoubleCentury View Post
    Were they just called Hayes Mag brakes? Does that correctly describe the material they were cast from?.
    Correct on both counts.
    This is a Pugs not some carbon wannabee pretzel wagon!!

    - FrostyStruthers



    www.mendoncyclesmith.com

  7. #7
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    Hayes G1 22mms are quite valuable to some folkes with old school rides


  8. #8
    Schipperkes are cool.
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    Quote Originally Posted by John Barrett View Post
    Great info. Thanks.

    What is BTI?
    Bicycle Technologies International
    Quote Originally Posted by mikesee
    Better suited to non-aggressive 125# gals named Russell.

  9. #9
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    III. Hayes Disc Brake History
    1972 Schwinn 200E Series bicycle disc brake
    1993 Production of DiaCompe Speed Check Disk Brake
    1997 HFX Mag
    1999 Cable Actuated Hydraulic
    2000 Redesigned flip-flop Mag MC 2 piece clamp
    G1 Caliper 74mm post mount
    2001 HMX-1 Mechanical
    2002 HFX-Comp
    HML Mechanical Levers
    2003 HFX Mag Plus
    HFX Nine MC
    G2 Caliper
    2004 HFX Nine Carbon
    MX-1 Mechanical
    MX-2 Mechanical
    Wave Rotors
    2005 El Camino
    Sole
    2 Piece Nine MC
    BFL Levers
    V-Series 6 & 8" Rotors
    2006 MX 3
    V7 Rotor
    SRL Lever

  10. #10
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    Thanks for the time line! I had no idea that they were involved with that early Dia Compe disc brake.

    So the original brake they started with in 1997 was an HFX Mag, which got more distinctions with time.

  11. #11
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  12. #12
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    Thanks for the link.
    I just ordered pads and Hayes Bleed Kit from JensonUSA.
    Let the fun begin.

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