Pro Circuit dogbones on Ebay, cheap. Maybe...

[demographic]

These are the ones I've seen.
I'm 90% sure that it was someone on KX riders that owns them but I can't for the life of me remember who. I saw the pictures and copied them to my computer as I liked the way they worked. If I remember right they said that they has used them and had no problems with them.
As you can see they have an octagonal insert that can be rotated to get different hole spacings.

[Sandblaster]

Thanks for posting those pics.
I have seen those as well on Kxriders about a year or more ago.
I'll bet it was part of the pics that got lost and they can't recover
Back ups are important

[demographic]

Thanks for posting those pics.
I have seen those as well on Kxriders about a year or more ago.
I'll bet it was part of the pics that got lost and they can't recover
Back ups are important

Yeah, I have noticed that pictures get deleted, lost whatever so I tend to copy them to my computer now. Have been for a few years now so have a fair old collection of KX 500 pictures.

Random stuff from an Aprilia Mito 125 chassis with KX 500 engine in it (the only sign is the massive kickstart lever) and desert racebikes.

[Sandblaster]

Nice.
Feel free to post it here.
I won't be loosing my pics any time soon