One of the many reasons I chose this ZX-10 over keeping a perfectly good GSXR 1000 was the absolutely beautiful close ratios of this gearbox. If you ever drive a mid or wide ratio gearboxed sportbike around for a while, you will see the difference and most likely come running back to a close ratio box.
On the street, for a lot of stoplight to stoplight type of acceleration, those boxes may have a slight edge over a true close ratio box, in the form of torque multiplication. But I feel the overall drivability of the ZX-10 box far outweighs that "street racing"
mind-set that exists. The shorter RPM drop between each shift creates a smoother riding bike, which I believe makes for a much better bike in the twisties and in all around street riding.
The ZX-10, as mass manufactured, isn't really a drag racing bike, although it certainly can be made to run well in that setting. It is basically a road racing bike, de-tuned some for the street for sport riding. I personally would not trade this gearbox for anything out there.
Just my opinions....
2012 black ZX10R, Targa F/E, Graves Ti slip-on & Ivan's wire mod.