Looking for a new set of tires for a mountain. With this bike my riding is mostly back road, rails to trails and light mountain bike trails. I'm looking for a good comprimise between easy rolling and traction. No heavy rock trails and no offroad racing. What are the advantages and disadvantages to the folding versus the wire bead? Is there a particular tire I should look at? I was looking at the Kenda small block 8 but would really like to understand the differences in the wire and the folding too. Any help?