I took my GPR dampner off my old cr, called Randy at GPR he sent me the correct bracket that clamped around the frame/steering tube on my KX500.
I cannot say enough good things about the GPR company. They stand behind thier products. When I wanted to put the GPR on my vintage CR, Randy's dad took my measurements and went right out in the shop and milled out a bracket for it.
When my dampner was damaged from a crash, they replaced it for free and even upgraded it to a newer model, for FREE..
If you have ever been jacked around by idiots, you will know why I endorse this company of professionals.
John