XIIR, pronounced "X, double I, R, (Xtreme International Ice Racing) is a Professional Racing tour... ON ICE! Man and machine going from 0-60mph in under 3 seconds! Speedway bikes and quads are modified and compete on an indoor ice arena. There are over 2000 metal studs added to the tires and there are NO BRAKES! What does that mean...? PURE ADRENALINE! It is THE fastest sport on ice and one of the fastest sports in the world. The rush of so much power and speed on something as unpredictable as ice, has whipped audiences into a frenzy and gained new fans across the country.