I have an 06 F4i, and I love it. I commute on it, and play on the weekends - it's capable of pretty much anything. I've been 1000+Km's on weekends 2 up and it's been fine for both of us. Sounds awesome with a Jardine RT-One exhaust as well (225 bucks for the F4i).
edit: I've got a Puig screen on mine, and it's soooooo much better than stock. Don't forget rear hugger as well - they only have a little plastic sqaure to protect the shock from crap. Here's my 06 with the one-piece seat ..
edit: I've got a Puig screen on mine, and it's soooooo much better than stock. Don't forget rear hugger as well - they only have a little plastic sqaure to protect the shock from crap. Here's my 06 with the one-piece seat ..