Pirelli Scorpion XC M Tire - 29 x 2.4 Tubeless Folding YLW Label Team Edition Lite RacePirelli Scorpion XC M Tire 29 x 2. 4 Tubeless Folding Yellow Label Team Edition Lite Race. The Scorpion XC M is the best choice for XC and Marathon courses where terrain can vary but speed is still the key factor. The medium profile tread pattern is ideal for riding quickly and confidently over a variety of terrains. Multi ply 120tpi Nylon for lightness and rolling performance TLR tubeless ready technology designed for easy mounting and bead stability