Maintenance & Technical > KX500 Original

Rear suspension

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Motorrad:
Searched.  Didn't find what I was looking for.

So
rear suspension   What changed over the years? 91-04
Linkage?  Shock?  Valving?

I am going to pick up a second shock to have valved to match the 08 450f forks I'm putting on,  and need to get the best shock I can.  Just need to be sure it will fit my 91

don46:
Get the 450 shock and change the clevis, if your really handy you can redrill the existing clevis, its a pain but can be done, changing it is much easier. Oh and you must depressurize the shock first or you'll blow out the needle, springs and all the good parts for the rebound adjuster. anyway if you wanted the latest stuff thats what I'd do. I have not used a 450 shock but I have used the 04 05 250f shock with no issues.

Motorrad:
I was considering going that route.  But am fearfull that the valving will be way off since there are differant ratios etc on the new bikes..  Thinking it would be a shot in the dark to get it valved correctly for desert raceing.
But if they arnt that far off I'd rather go this route.

Is the collapsed and extended length the same?

 

Is there a link to your conversion?   

Motorrad:
Just got off the phone with my suspension guys    They told me that if I can make the 450 shock fit.  They can valve it correctly.  And would reccomend I go for it. 

Told me that they have done it for a few 250 guys already. 

don46:
the lengths are the same provide you swap the clevis otherwise the 450 shock will be to long, as I recall the clevis is about another 1.5" longer on the 450 than the K5

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