Sofadriver, thanks for the offer, but the stock bar on my bike is 7/8" and I guess it's not a fatbar.
At the time being I'm torn between this Rox riser or a Rizoma bar. The rox will definitely give me a more upright riding position, but after months of riding my bike, I find that I've adapted to the slightly leaning forward riding position. As for the rizoma, I'm hoping that it will give me a more relax and comfortable wrists position.
But I guess those are just me trying to rationalizing thing, I guess the real reason is I want to customized the bike. Still not sure which one to get, though