ArkyKenny on 3/3/2013 8:39:37 AM:
Anon, you nailed it, People on this forum always seem to be asking some version of "How skinny can I go?" In regard to tires. I don't understand that. I usually ride multi-day trips on the Katy, (so I carry 40# of stuff), and my preferred ride is a drop bar steel 29er with 40mm kevlar touring tires (Schwalbe Marathon Mondial). I run them at around 60# of pressure.
Anyway, I like the big tires because they keep me on top of the surface, they keep me out of ruts, they allow me to not cringe every time I hit debris, they don't get pinch flats when I cross over an asphalt surface, they save me when I am not paying attention and run off the trail, they keep my butt and hands comfy, and they are plenty fast. For all those reasons, I previously rode on 26x 1.5 semi slicks. (I bought those 26" tires for $12 on eBay--thick rubber in the middle, lugs on the edge).
If I was trying to go for speed, or distance and unloaded, I might think about 700x 28s. But people on the Katy, including me, generally want to cover ground, but not as fast as they can. I say go big, semi-slick or smooth in the center, and go kevlar for maximum enjoyment.