Did someone say tachypnoeic shift? Well Faria et al did and I quoted them (at least in part) here.
But wait, there's more! If you read Lucia, A., Hoyos, J., & Chicharro, J. L. (2001). Physiology of professional road cycling. Sports Medicine, 31, 325-337 as I found it here, you'll see this quote: "Several studies have recently shown that PC exhibit some remarkable physiological responses and adaptations such as: an efficient respiratory system (i.e. lack of "tachypnoeic shift" at high exercise intensities); a considerable reliance on fat metabolism even at high power outputs; or several neuromuscular adaptations (i.e. a great resistance to fatigue of slow motor units)."