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  1. #1
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    PSA - Grafton brake bushings

    In case you find yourself rebuilding your grafton brakes and you find that you inner bronze bushings are scratches and bind on your brake post don't fret. Turns out old JG didn't actually use metric bushings, I mean why would he??

    You can't get bronze 8mm bore, 9.5 mm OD and 16mm long bushings, but you can get 5/16" bore, 3/8" OD and 5/8" long.

    5/16 is 7.97mm (roughly) so you just have to ream them to 8mm or so, or just run some emery cloth through them to open them up just a bit to fit over them standard 8mm brake post.
    Last edited by prefixie; 09-09-2012 at 09:19 PM.

  2. #2
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    Umm, what?

    I'm a machinist and your post makes no sense. How do you ream a 3/8" OD bushing to 7/16" or 8mm?

    And you're right, JG probably didn't use metric bushings; he probably made them to his spec. Pretty easy with a machine shop at one's disposal.

    I applaud your efforts to try and help (and understand where you are trying to go), but maybe re-read your post and edit it so it makes some sense.

  3. #3
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    Sorry it was late and I was tired.

    I meant to say that the 5/16" bore is just shy of 8mm, so it's a snug fit at best and if the tolerance stackup goes the wrong way you'll get binding of the brake on the brake boss.

  4. #4
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    Makes much more sense now. And you're right, 5/16" is .3125", and 8mm is .316", just close enough to either work or be a PIA!

    Thanks for the tip!

  5. #5
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    Yep. Thanks for the error check!!!

    The one part I can't figure out how to find a replacement is the plastic bushing, spacer thingy between the main metal parts. The set I was working on was complete, but a couple of them were cracked and so ultimately finding new ones would be nice. I just don't know what they would be called.

  6. #6
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    throw up a few pics.

  7. #7
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    Lip Seals

    Quote Originally Posted by prefixie View Post
    Yep. Thanks for the error check!!!

    The one part I can't figure out how to find a replacement is the plastic bushing, spacer thingy between the main metal parts. The set I was working on was complete, but a couple of them were cracked and so ultimately finding new ones would be nice. I just don't know what they would be called.
    I still have a few left over. I could send you a few. Have some bushings left over too.

    John Grafton

  8. #8
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    Quote Originally Posted by John Grafton View Post
    I still have a few left over. I could send you a few. Have some bushings left over too.

    John Grafton
    Fcuk I love this place sometimes...

  9. #9
    Team Brooklyn
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    Very cool!!!

    I'm looking for a pair of spring housings for my Mag Lites.

    Anyone have a source for these?

    Thanks
    Wanted: more of the same ... but different

  10. #10
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    Quote Originally Posted by CCMDoc View Post
    Very cool!!!

    I'm looking for a pair of spring housings for my Mag Lites.

    Anyone have a source for these?

    Thanks
    I don't have any mag light cups but I have black aluminum ones. You might try Martin at Second Spin Cycles.com.

    John Grafton

  11. #11
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    Quote Originally Posted by John Grafton View Post
    I don't have any mag light cups but I have black aluminum ones. You might try Martin at Second Spin Cycles.com.

    John Grafton
    Thanks for the tip I'll check them out.
    In the meantime, if the black aluminum will work, I'd like to buy a pair if you don't mind.
    Thanks again,
    Paul
    Wanted: more of the same ... but different

  12. #12
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    Quote Originally Posted by CCMDoc View Post
    Thanks for the tip I'll check them out.
    In the meantime, if the black aluminum will work, I'd like to buy a pair if you don't mind.
    Thanks again,
    Paul
    They will work they are just gloss black not flat like the mags were. Send info.

  13. #13
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    I think we'd all love it if you just started producing everything again.
    -eric-

    http://www.rumpfy.com

    Wanted: Syncros 27.2 x 425 seatpost, 26.8 x 400 IRD seatpost

  14. #14
    Royalston Mass
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    How about speedtrap cleats/rebuild kits? That would be great!
    Don't argue with idiots...they will take you down to their level and beat you with experience

  15. #15
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    Man, this place is incredible!

    JG posting!

  16. #16
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    [QUOTE=CCMDoc;9863541]Thanks for the tip I'll check them out.
    In the meantime, if the black aluminum will work, I'd like to buy a pair if you don't mind.
    Thanks again,
    Paul[/QUO
    Last edited by John Grafton; 11-14-2012 at 09:43 AM.

  17. #17
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    For Matt Ballman

    Matt, I haven't posted 10 times yet so I can't respond to private messages. I do have your parts so send me your info.

    JG

  18. #18
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    Quote Originally Posted by John Grafton View Post
    Paul, If that's cool send to John Grafton and I'll mail them off to you
    That is absolutely fantastic!!!

    Can't thank you enough.

    Check will go out tomorrow unless you prefer PayPal.

    Thanks again

    Paul
    Last edited by CCMDoc; 11-14-2012 at 10:24 AM.
    Wanted: more of the same ... but different

  19. #19
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    Quote Originally Posted by CCMDoc View Post
    That is absolutely fantastic!!!

    Can't thank you enough.

    Check will go out tomorrow unless you prefer PayPal.

    Thanks again

    Paul
    Checks cool. If it bounces I'll call my old buddy Ringle to come get ya.

  20. #20
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    Quote Originally Posted by John Grafton View Post
    Checks cool. If it bounces I'll call my old buddy Ringle to come get ya.
    Haha! So awesome.
    -eric-

    http://www.rumpfy.com

    Wanted: Syncros 27.2 x 425 seatpost, 26.8 x 400 IRD seatpost

  21. #21
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    Quote Originally Posted by Bertleman View Post
    How about speedtrap cleats/rebuild kits? That would be great!
    I do have a few pedal parts left. The cleats are the later stamped ones not the machined ones but they work about the same. Let me know what you need and I will do my best to help.

    JG

  22. #22
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    Quote Originally Posted by Rumpfy View Post
    I think we'd all love it if you just started producing everything again.
    One never knows what evil lurks.

  23. #23
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    Thanks everyone!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    I needed 10 posts to reply to private posts. So here is my 10th post. I'm so surprised to see that after almost 20 years I'm still remembered. Grafton Performance had it's ups and downs, cracking cranks and all. I guess I still have a following. So be it. If I can help I will.

    John Grafton

  24. #24
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    Vintage Bikes

    PS.
    If your looking for vintage bikes and or parts check out Martin at Second Spin Cycles.com. Really cool guy and knows his stuff. Almost knows more about my parts than I do.

    Peace JG

  25. #25
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    Quote Originally Posted by Rumpfy View Post
    Haha! So awesome.
    Great - another person who wants to see my ass kicked ...

    Get in line pal ...
    Wanted: more of the same ... but different

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