Kris now recommends the Stout:
http://www.unicycle.com/shopping/shopexd.asp?id=1287
It isn’t much wider than the Navegal though. There simply aren’t a lot of choices for freeride 29er tires out there. There are wider tires than the Stout, but they are also of very light compounds and have thin sidewalls and from what I hear they just don’t do well for 29er muni. I am doing fine with the Navegal, I think it is a great tire, especially after using a nanoraptor, but I if I need to get a new tire for my 29er I will pick up the Stout.
There was some good discussion in this thread: