<blockquote><font size=1>In reply to:</font><hr>
why do the six hundreds and all the shizzy kawis have reg forks compared to inverted
Typically, inverted forks are heavier overall, but have less unsprung weight and more resistance to bending. This makes them perform better in racing conditions. All modern sportbike forks have cartridge-based damping internally, so there is no difference in action between them, apples to apples. Obviously a high-end Ohlïns fork will work better than a low-end Showa.
Kawasaki replaced the 43mm inverted fork with a 46mm conventional fork on the ZX-9 in 1998 as part of a 77 pound diet they put the bike on. That Ninja would have grabbed all the headlines that year, but for that pesky R1. (Note that even the R1 has thicker fork tubes for 2002; 43mm up from 41.)
For the 600 class it's a money thing I suspect. Over the years they've gotten wider wheels, aluminum frames, fuel injection, etc. It'll just be a matter of time before they all get USD forks.
As for why the ZX-9 still hasn't kept up, spec-wise, with the other open-classers, I wish I knew. I'm not at all unhappy with my ZX-9, and this is after I got to ride a friends R1 (I'd tell you that bike is awesome, but this forum already knows that.)
That's an awesome R6 BitchinR6. Where did you get the forks? (Wrecked bike? Purchased new?) And where did you get the triple-clamps? Did you change rake and/or trail? Did your old calipers fit or did you get a whole new front end? (As you can tell from my sig, I have a ZX-9, (shizzy Kaw to you, YZROOSTINYA) and an USD fork conversion interests me also.)