Snakebitten, I'll ammend my comments about a street tire being better on a hardpacked dirt road, since your inferences of questioning this, have not gone unnoticed. First off, a rear K60 gets 10 plus thousand miles for many owners for a reason. Its center tread is harder than a honeymoon dick. That, and inflated to 38-42 psi and with no grooves at all, it has a minimal contact patch and cannot displace even a miniscule amount of surface rubble that will always be on a dirt road. That's why I said a slick would not be a good choice for a dirt road, although in retrospect, because its compound is so soft, it actually would be better straight up and down than a K60. Most, if not all, of the 80-20 or 90-10 tires that you can get for our bike are a softer compound than a K60. Besides that, they have "breaks" in the center tread, as much for water dissapation and to dispell minor rubble as slight flex to aid in traction on irregular surfaces because the flex makes the compound act softer than it already is. That, is what I meant by a "street" tire being better. There is absolutely no arguement that when the going gets rough, and the surface erodes to a point that the tire is penetrating into the surface it is on for traction, a tire like the K60 is better. If you are going to spend the majority of your day on secondary roads or trails, it would also be beneficial to lower your tire/s air pressure to mid to high 20's. As you probably already know, or maybe even own already, there are mini compressors you can carry with you that will plug into any accessory outlet that can air you back up in moments, if necessary.
