Pirelli Scorpion Race Enduro S Tire - 29 x 2.5 Tubeless Folding YLW Label Team Edition DualWALL SmartEVO DHPirelli Scorpion Race Enduro S Tire 29 x 2. 5 Tubeless Folding Yellow Label DualWALL SmartEVO DH. The Scorpion Race Enduro S is the tire designed for races on intermediate and soft terrains a true specialist of sandy loamy and generally looser tracks. Racing Ready The soft terrain specialist tire DualWALL is the special structure dedicated to enduro racing. The 120tpi double ply carcass is combined with a rubber insert which reinforces the bead area