ZX10r forks

Discussion in '5th Generation 1998-2001' started by derdummkopf67, Oct 28, 2013.

  1. derdummkopf67

    derdummkopf67 New Member

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    Greetings. I am trying to finish one of my builds. I just need a bit of help first. I was conducting some research on how to adapt the Zx10r forks onto the VFR. I figured my best bet was machining a new stem and pressing it into the zx10r lower triple. I volunteer at two youth football leagues when I'm not in school and one of the coaches so happens to be a machinist. Since I'm a volunteer, he said he would donate his services and materials to make the stem. The only thing I would need to do is get him blue prints of the part I want to make. So, does anyone happen to have a blue print or specs of the stem? It would help me out since I would have to alter the lengths and diameter of the part which would be pressed in. If this doesn't work out, what steps would I take to compose a blue print for this custom stem? He also wants to know what material to use.

    [​IMG]

    [​IMG]
     
  2. mello dude

    mello dude Administrator

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    Hi - the only way I could figure it is a reverse engineering type job. Get the stock stem and make measurements. Or.. If you give the stock OEM part to your machinist, he may be able to do his own measurements and copy it.
     
  3. derdummkopf67

    derdummkopf67 New Member

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    Thank you. My machinist agreed to reverse engineer the parts. I will have blue prints available for anyone that decides to go about this conversion. I should have the stem by the end of the week.
     
  4. mello dude

    mello dude Administrator

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    ^^^ Could I have the 5th gen lower triple when you are done?
     
  5. derdummkopf67

    derdummkopf67 New Member

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    Actually, my machinist hacked them. So, they're probably not good anymore. =/ Sorry.
     
  6. PWH

    PWH New Member

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    Before you get started... Beware that those forks ARE NOT long enough. I know this from my 08 GSXR front end I installed. Unless you can lengthen them or dramatically change the offset, you're about to ruin your bikes geometry with that triple and short forks, completely negating any benefit from improved forks

    FYI
     
  7. derdummkopf67

    derdummkopf67 New Member

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    A little too late, but thanks. Do you have pictures of your bike?
     
  8. vfrcapn

    vfrcapn Member

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    Can't you press the stems out of the ZX and VFR triples, and press the VFR stem in to the ZX triple? That's how I've always done it.
     
  9. derdummkopf67

    derdummkopf67 New Member

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    The diameter of both stems is different. Vfr's is significantly lighter and smaller. I'm still waiting on the part. Its just the whole team is in football mode as we are playing in a championship game tomorrow!

    A member from another forum inspired me to adapt these forks to my bike. So, its not impossible. Its been done without fault. Here are a few pics. (ZX10r forks)

    [​IMG]

    [​IMG]
     
  10. vfrcapn

    vfrcapn Member

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    Good luck with the bike and game. Post some pics of the part after it's machined.
     
  11. mello dude

    mello dude Administrator

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    I'm guessing that bike is using a SP-1 lower triple and a 929 upper triple. Saves a lot of hassle. Whadya think Capt?
     
  12. vfrcapn

    vfrcapn Member

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    That's how I mounted my RC front end. But then you have to deal with wheel and/or caliper spacers mixing OEM brands. My machinist told me last time he could build up a stem by welding at the base then turn it down to the dia needed in a lathe. Probably just as easy to machine a new one up. I would be interested to know what the dimensions are of the ZX stem, just to compare to the SP1 stem.
     
  13. derdummkopf67

    derdummkopf67 New Member

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    Thank you. We won 44-36 in the last 10 seconds of the Game. It was some freak fumble recovery from inside the other teams 10 yard line for 6.

    He is using 929 upper and lower from what I read. It does save a lot of hassle but I can't afford the extra parts.
     
  14. JamieDaugherty

    JamieDaugherty New Member

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    For sure. What I've seen over and over is an underestimation of the total cost to complete a front end swap. It is much more than it may seem. Once you factor in the parts plus a spring and revalve service you are lucky to make it happen for under $800.
     
  15. mello dude

    mello dude Administrator

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  16. squirrelman

    squirrelman Member

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    Way too technical, smart guy. :jason:

    Sometimes things get done just following current fashion, regardless of any improvement whatever. Customizin and getting a hand into the de-zine. :peep:
     
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