Pirelli Scorpion XC RC Tire - 29 x 2.2 Tubeless Folding YLW Label Team EditionPirelli Scorpion XC RC Tire 29 x 2. 2 Tubeless Folding Yellow Label Team Edition. The Scorpion XC RC tire is Ideal for the racer who seeks the best performance in all racing conditions while pushing beyond their limits featuring a tread pattern designed to handle modern XC courses: from unexpected obstacles and various terrain and hardpack to loose conditions. Low profile thick central knobs offer minimal rolling resistance while higher lateral knobs