The Continental Grand Prix Triathlon Tire is built by little old ladies in the small town of Korbach, Germany. Each GP Triathlon Tire features the Continental's own infamous Black Chili Compound which Conti claims provides longer life, improved grip, and 20% less rolling resistance than a regular GP4000 tire. In addition to Black Chili Compound, the little old ladies also take the time to incorporate Conti's VectranBreaker anti-puncture belt, because there is nothing they hate more than seeing a cyclist stranded on the side of the road with a flat tire.