I installed the guards on my -09 KX 250F. They fit good, and look good. But the welds are not all the way out to the edges. This makes for the start of a crack. They had cracked in the welds and through the mounting holes in around 15 hours of use. I had no crashes or big rocks hit them. Also, the welded area is to small for such a big "flap". They simply vibrate to smithereens.