We're excited to have Dylan Johnson back on the show to talk about how to approach the big X-Factor in the LT100: altitude. Dylan puts thought into every race and every situation and in the case of Leadville, he worked very hard at getting his arrival to high altitude right.  He’s here to share his approach and how the citizen racer can figure out how to lessen the blow of Leadville’s biggest challenge: it’s lack of air. And for our LFAQ, a question sure to spark controversy: is it possible to have your chainring be TOO small?