The only other thing you have to be careful with on the tripple clamp swap is the steering stem diameter. I found (by accident) that while the tripple clamp fork diameter was the same, the KX250 had a larger steering stem than the KX500, about 21 thousands to be exact. My solution? Purchased a small length of 10 thousands shim stock, shaped it into a circle around the outside of a socket, and tapped it into the tripple clamps stem hole after the tripple clamp was installed. The fit was perfect.
Rick