Originally Posted by streners
wrist pain is usually a setup issue due to excess weight being put through your hands and not your butt or legs. Something like a handlebar being too low, as stevo suggests, and/or something like your saddle being too far forward. Play around with your position on the bike and find a bar that works for you, it may not look as cool as that bar, but if it brings you pain then you won't ride the bike anyway.
I agree with this.
I was told that if the bike is properly fitted, you should be able to have someone hold the bike upright for you while you assume a riding position, then grab the flat part of the bars. Next, remove your hands from the bars (you could flip your hands over and put the back of your hands on the flats). You should not feel like you are "falling" forward and your abs and lower back muscles should be able to hold up your torso with no support from your arms.
You might also try a new set of padded or gel gloves before swapping out hardware.
Dan