I'm getting a Gary Fisher HOO KOO E KOO with Panaracer DH Pro tires and Maxxis DH Tubes. I'd like to know what tire pressure would be the best for the kind of riding I'm doing. Unmaintained gravel roads, atv trails, mountains, rocks, tundra, mud, soft sand etc. The longest I have done so far is 2 hrs and that will increase by a lot.
I weight 185lbs and 5' 9.5", age 53 and I am not going to do any jumping.