Got the low bars installed yesterday (Bikemaster Euro bend). They don't look all that much lower in the pictures, but when you look at the bars side-by-side, you can see how much higher the stock bars were. Had a couple of issues. I ordered shims for the bar clamps, but I didn't realize the clutch and front brake perch were on the 1" diameter portion of the stock bars. I thought all the controls were on the 7/8" diameter portion. So I had to go to the local bicycle shop to buy some more shims for the perches. After getting everything installed, the throttle was sticky -- not readily springing back to the closed position. The problem turned out to be the now extra length of the stock throttle cables. I experimented with the positioning of the cables to make them operate more smoothly. Here's how the bars look on the bike:
The shims for the bar clamps (trimmed to the proper width):
The mirrors (which aren't all that great on the stock bars) now showed my nothing but my arms and shoulders. Used some E-Bay billet mirror extenders which reposition the mirrors up 1" and out 2" or so. Much better view now.
Lastly, I installed new Progrip model 714 grips.
Overall, I'm very happy with the results. About $50.00 for the whole setup - much less $ than the Kawasaki low-bar kit from Europe.