Well, the Z is a lot *smaller* physically than the 12........it is still a hell of a lot of fun, but it is really not that much bigger than a 600 (well, thats how it felt to me...)
Not sure on *your* specs mate, I am 186cm and 105kg, and the 12 is a *perfect* fit , very comfortable at speed , the only thing I will change is the bars, and fit my own Heli-bar replicas for commuting......
Go the 12 mate, think of that 160+ hp
Only problem is ongoing tyre expense.......

its a bastard...
