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Author Topic: USD Fork Conversion  (Read 3929 times)

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Offline millwoodva

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USD Fork Conversion
« on: December 07, 2011, 02:11:09 AM »
No luck with the search for an '86....

I would like to install USD forks on my '86 KX500..
What KX models should I be searching for on eBay..?
Thank you in advance..!!
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Offline kwakman

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Re: USD Fork Conversion
« Reply #1 on: December 07, 2011, 03:43:36 AM »
Any. Get the clamps/yokes as well. K.
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Offline millwoodva

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Re: USD Fork Conversion
« Reply #2 on: December 07, 2011, 06:12:35 AM »
Quote from: kwakman on December 07, 2011, 03:43:36 AM
Any. Get the clamps/yokes as well. K.
Could that included 250 as well.?
No stem length issues.?
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Offline weymouth399

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Re: USD Fork Conversion
« Reply #3 on: December 07, 2011, 06:19:09 AM »
You NEED to check bearing sizes in the neck. I do know that all KXs do not have the same steering stem sizes.

Bob W
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Offline The Flyin Hawaiian

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Re: USD Fork Conversion
« Reply #4 on: December 07, 2011, 08:25:10 AM »
Go to the All Balls site or Pivot Works and you can cross referance the bearings with differant models and years. I think the KX500s all share the same bearings. But check anyway.
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Offline don46

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Re: USD Fork Conversion
« Reply #5 on: December 08, 2011, 03:15:07 AM »
If I was going to do this conversion I would go with the latest Icould get. that means you may have to contact Emig racing to have a set built that will accommodate the fork tube size and your steering stem size.  I do know that you can install late model forks (250f, 450f) on the 89-04 kx 500 can't remember what year steering stem you need but they will fit. come to think about it I think I have a AL steering stem that emig made for me to accomplish what you doing, it could be for sale if the price is right.
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Offline gwcrim

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Re: USD Fork Conversion
« Reply #6 on: December 09, 2011, 07:49:05 AM »
I have inverted forks and a triple clamp in my shop collecting dust.  Was gonna do it to my '89 decided against it.  If you're interested, let's make a deal!!!
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Offline sandblaster

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Re: USD Fork Conversion
« Reply #7 on: December 09, 2011, 10:43:57 AM »
In short, kx500 steering bearings are the same from 83-04.
Upper bearing:
FITS 84-87 KXT250, 74-76 78-91 KX125 KX250, 83-04 KX500, 75-76 KX400, 80-81 KX420, 78-84 KL250, 80-84 91-94 KDX250, 83-06 KDX200, 97-05 KDX200, 79-80 94-96 06-10 KLX250, 93-96 KLX650R & C - 92047-017
Lower bearing:
FITS 74-76 78-91 KX250, 80-81 KX420, 83-04 KX500, 83-94 KDX200, 81-84 KDX250, 84-87 KXT250 - 92116-1008
There was also some street stuff that I deleted.
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Offline millwoodva

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Re: USD Fork Conversion
« Reply #8 on: December 09, 2011, 01:34:17 PM »
Quote from: gwcrim on December 09, 2011, 07:49:05 AM
I have inverted forks and a triple clamp in my shop collecting dust.  Was gonna do it to my '89 decided against it.  If you're interested, let's make a deal!!!
PM's sent.
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Offline thooker

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Re: USD Fork Conversion
« Reply #9 on: March 21, 2012, 04:41:08 PM »
I just put a set of USD forks on my 1989.  I went with a 1993 set of forks.  What I needed to add was a front wheel, triple tree, front brake assy including the cable.  Should go out and test the suspension next week.
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