The Kahuna has significantly better specs than the other three. The cindercone has very comparable specs and is exactly the same price, 1099 dollars. Whether 26 or 29, the better drivetrain, fork, brakes, and maybe wheels are well worth the extra few hundred dollars or so over your other options. At least they would be to me. In fact the Cindercone and Kahuna seem to be pretty good deals all around.