How to pick an MTB tire, sizing, surfaces

Nice bikes!

I ride all sorts of terrain and have tried loads of the Maxxis tyres to date.

For XCM racing I like my Fox 100m SC forks and carbon hoops with a 2.35 Ardent race up front. (120 TPI, eco 3c max speed and all that jazz). 2.2 Ikon on the rear.

If I’m playing around and exploring trails I use a cheaper set of wheels that have an Ardent on the rear and a Minnion DHF up front.
I also have a fox 34 120mm travel fork for this arrangement if I’m going to leave it that way for awhile. From memory that fork will only take a 2.5 tyre before it scrubs.

To be honest I’ve found I get used to either setup really quickly and adjust my riding to suit without thinking. The only time I ever miss chunky tyres is on rainforest type trails and on really sharp rocks. The large knobs are the only way to get any grip on slimy roots/leaf litter and they’re less likely to puncture IME.

For the relatively low cost of tyres I think you’d be mad not to try a few different combos out until you find one (or several) that you like.