I put on a General Altiman RT43 195/55R-16. I know, all the dardsiders swear by the 205/60R-16 but never the less. I tried it for about 150 miles. I wasn't comfortable leaning into a turn and feeling the sidewall flex. Especially from a stand start. Car tires are designed to do that to keep the tread as flat on the road as possible. Exactly the opposite is true for a motorcycle tire. Thats definitely not for me. It made the speedometer show 5 mph faster than actual and odometer register 5% more miles than actual. I know, the diameter of the wheel and tire is a full inch smaller than the stock tire. Also there could be a liability issue. The bike was not designed for that type tire. Insurance being what it is, could or might refuse to pay any liability claim or damage claim if it related to a tire issue, claiming a non-approved modification. I don't want to be the one to test them. Anywho, I put my Commander II back on. 5500 miles on it and it still looks knew. When it was new, it had 10/32" tread. Now after 5500 miles it still has almost 8/32" tread left. Should get decent milage out of it. I probably have a more conservative riding style than most. It's not a sport bike so I don't try to ride it like it is. So, I tried the dark side to see what it was like. Not for me. Back into the light.