Likely because pressure can be adjusted, a new mousse may be a bit stiff for this application. Maybe its just the camera or just me for that matter, but that bike looks a bit taller in the rear than my 300RR Race from the gap under the fender. I wonder if the Fox shock is longer?
Tire balls are great, however they really demand lots of attention. Pre ride/race prep (pressure service per ball), they are virtually industructable and for a pro who has full support and to make recordable adjustments for the specific course they are the perfect choice.
watched this the other day... hottest f'in bike in existence right now. pitched a massive tent 15sec in