Tires! One of my favorite topics! The tires you choose can be based on many factors: How much time you have, how much money you’re willing to spend, and what your goals are. If you were looking for just a one-tire option that would cover all your bases, I would go with something like the Donnelly PDX or similar. This will cover you in all conditions. Sure, it won’t be the greatest tire to have on your bike when you’re sprinting your arch-nemesis on a paved finish line section but this tire will hold up in variable conditions of all kinds (dry, snow, mud) and is great in off-camber grass. Just because you live in a dry climate area does not mean you need a dry conditions tire. A dry course can be wet in the morning because of morning dew, or overnight sprinkler system, or perhaps a section of the course is near a wet drainage/stream area. If you’ve got a dry conditions tire on and your crashing or going slow around a slick corner every lap, what’s the point? My take home message is if you’re going to get one tire that will cover you for as much as possible go with something like the PDX. During my last years of racing cross I had three sets of tubualrs glued up with the PDX. One for my A and B bike and a back up set. Even though I had access to other tires and wheels, I wanted to take the brain damage out of this part of cross racing. I had tires on that I knew would work and I didn’t have to question my tire selection before every race. All I fussed with was tire pressure.