If the distance and difficulty of Colorado鈥檚 many organized bicycling events is any indication, a flat, 100-mile bicycle ride is not, for many riders, quite tough enough. That鈥檚 one reason the 11th annual Buffalo Bicycle Classic鈥檚 longest route will go farther and climb higher than any of the event鈥檚 courses so far. The 鈥淏uff Epic鈥 will span 110 miles and ascend a total of 6,250 feet. It retraces much of the most mountainous section of Stage 6 of the 2012 USA Pro Cycling Challenge.