GSXR 1000 will beat both of them in the quarter mile. The only thing those bikes have is more top speed, being longer, more aerodynamic and more power, but they are also a lot heavier. Acceleration wise they really aren't all that.Where in the real world are you gonna go 189mph for any amount of time? Acceleration is much more usefull to me, I'd take a liter bike any day, but if I had to choose I'd take the ZX-14