ISM saddles were ridden by 328 athletes at the 2012 Ironman Hawaii—the second-most of any brand—yet only one bike maker, Quintana Roo, includes these saddles on its bikes. And there were only 61 QRs in the race. That means at least 15 percent of the field upgraded their saddle to an ISM. Despite the exploding popularity of tri-specific saddles, bike companies have been hesitant to include the unconventional seats. That stubbornness may be fading. Cervélo is spec’ing the ISM Prologue on the 2013 P3 and P5, becoming the first big bike brand to do so. Hopefully more will follow.