[Rob Lee]

It is a frame lug that takes a steering damper. Check out this thread.

 

[ColorBlind99]

I have wondered about this thing since I purchased my '99 ZX6R. Can anyone tell me what the little bolt thingie on the left side of the frame about 3 inches in front of where your knee sits... It is only on the left side and the curiosity is killing me!!!

 

[NoFear058]

nah dude, it's for the opitional cup holder. right on.