@Diluted - Yup, stock front tire. I'm surprised as well. I had to replace my rear tire at 16k. My guess is that the combination of long highway commute and plenty of engine braking is rough on the rear tire but very easy on the front.
@OffTheClock - 99% commuting to/from work. I live in Casa Grande, AZ and work in Tucson, AZ. 77mi one way. The other 1% is taking it in for maintenance, haha.
@Skidro - Thanks! Although I wish I didn't have to travel soo far each day, I'm afraid I'm going to wear this bike out WAY sooner than most people would normally. Just started hearing a clicking sound coming from the rear sproket area a week ago and found out that my chain has tight spots and my rear sprokets are getting grooved... soo much $$$!

But still a heck of a ride!