“Whoa!” I exclaimed as I walked into the garage. “It is HOT in here.” “It’ll be hot in Cozumel,” John replied, barely looking up from his aerobars. It was the Fall of 2011. John was ramping up for Ironman Cozumel, where he would attempt to qualify for Kona. Now, in the Fall of 2012, we all know how that story went. On this day in particular, he was in the middle of a 6.5 hour ride – on the trainer in the 90-degree, airless garage. Why ride the trainer in a hot garage on a gorgeous early Autumn day, you might rightly ask? …