The Pirelli Scorpion Race 29in Enduro M Tubeless Tire runs on a DualWALL casing, a 120 TPI double-ply carcass with a rubber bead insert reinforcing the pinch-flat-prone bead area. That construction is built specifically for enduro's mix of speed and technical terrain, giving up some of downhill's extra bulk for a more connected ride feel without losing the double-ply reliability enduro racing demands. Pirelli's supersoft SmartEVO DH compound, the same PRO-developed formulation used across its downhill lineup, backs that casing with grip through hardpack and loose dirt alike. What Our Gearhead(R) Experts Are Saying:"I've raced this on hardpack and loose dirt in the same stage, and the bead insert never let the tire squirm under hard cornering load."