to tell you the truth ive always been happy with a standard B12 engine but with a good can on. i wouldn't mind a touch more and better fuel consumption but its not on my importance list, im not a speed freak i just like the grunt, what is important though is a bike that looks the dogs danglies, handles pretty good and stops. im a bit of a poser and like it when people look at the bike, and i even go past shop windows so i can see how it looks when im on it yeah i know im a sad fucker