I have a metallic rattle sound on the front of my bike. I don't think it's the skid plate and I'm sure it's not the engine since the sound is the same whether the clutch is in or out and it only does it on rough ground. Also, if I shake the forks back and forth when I'm off the bike I can duplicate it. There's not much to check out that moves when you shake the fork and I think I've covered everything. Think it could be one or both of the springs in the fork rattling around?