KX Riders

Maintenance & Technical => KX500 Original => Topic started by: wills640 on January 02, 2011, 06:39:10 AM

Title: Fork ID
Post by: wills640 on January 02, 2011, 06:39:10 AM

Can anyone identify these forks for me? I took them off a USA Spec KX500 1989. I am however told these are not 1989 forks. My guess is some one took off the RSU 46mm KYB's and put these on. I now have a set of the 46's so need to sell these.

Title: Re: Fork ID
Post by: Motorrad on January 02, 2011, 06:47:20 AM

They look like blue leg forks that someone stripped all the blue off of...

Title: Re: Fork ID
Post by: sandblaster on January 02, 2011, 07:41:21 AM

I agree, they do look like the Blue style.
See if your specs match these:
USD -
Stamps on the bottoms of the forks: X125-R X125-L -
43MM CHROME OD -
Top of cap to the axle C/L 37.25" (Approximately)-
UPPER Triple clamp OD: 52MM -
LOWER Triple clamp OD: 56.6MM -
BRAKE MOUNT C/L 60.5MM
AXLE CLAMP 22MM ID

Title: Re: Fork ID
Post by: don46 on January 02, 2011, 02:26:04 PM

1990 were upside down and Not blue, looks like the picture

Title: Re: Fork ID
Post by: sandblaster on January 02, 2011, 03:48:33 PM

Hi Don.
You are correct for a 1990.
However, those numbers stamped on the bottom of the fork tubes indicates that it was very possibly a different year.
If he can verify the numbers and measurements I posted I'm fairly certain I can tell him what they are for sure.
The 1990 KX500, kx250, and kx125 forks all used a 41MM chrome tube diameter.
That will be the nail in the coffin  :-)
My guess by the fork code is they are 91-93 and will be 43mm but, I have been wrong too many times to count  :lol:

Title: Re: Fork ID
Post by: wills640 on January 05, 2011, 08:00:35 AM

Guys,
These are deffo 41mm chrome legs, the surface on the uppers looks original, no sign of any blue, does this mean they are 1990?

Title: Re: Fork ID
Post by: sandblaster on January 05, 2011, 08:08:31 AM

I'd call them 1990 KX500, kx250, or kx125.
I'm fairly certain they only used the 41MM for one year.
But, I could be wrong  :-o

Title: Re: Fork ID
Post by: RM_Rider14 on January 05, 2011, 02:01:24 PM

At the very bottom of each leg, in very, very small print does it have "KX" and a year stamped on them?  I mean small, maybe 2-3mm big in height at most.  I can take a pic of mine if you need to see what I am referring to....  Of course if the legs have seen a few rocks the stamping I am speaking of is probably gone or mashed....