I currently have Race King 2.2s that are starting to show some wear. It's not always easy to source them at a good price, eh? So I'm looking for some comparisons against Kenda Karma 2.0s and Small Block Eights -- both the 1.95 and the 2.1 sizes. How do these all compare to the size (height and carcass width) to the Race King? How do the rides compare against the Race King at lower pressures?

Also, any other suggestions for a similar sized tire with low rolling resistance and big volume in that 450-550g range? I'm now spoiled by the extra cush and extra grip of the Race King, but I want to see if there's anything out there that's comperable. Maybe the new Ralph?