The Race King has presented itself as a talented newcomer in the best way possible - with victories! Irina Kalentieva - Topeak/Ergon took the first prototype to the podium at the 2007 UCI World Cup Championships. The secret of the Race King is a large volume casing mated to a low- profile tread pattern that not only spells speed, but also incredible all-round traction and control. Race King UST- Tubeless: 3 plies/ 330tpi/ foldable.