Repost: Don't Crack

This post originally appeared on Sep 13, 2007.

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BikeMonkey Guest Re-Post“I was hanging with the leaders until the second climb when I cracked about halfway up.”
“I just kept to my pace on the climb and passed three guys who cracked trying to ride with the front group.”
The use of “to crack” in cycling is different from “blowing up” in that it implies, to me at least, a psychological component. “Blowing up” just means you rode yourself beyond your sustainable level of effort, roughly speaking over into the anaerobic side of the power station. In contrast “cracking” is applied to situations in which the going is tough (generally climbing) and a racer (or rider) just stops maintaining the pace which is otherwise sustainable. There is a slowdown in speed, of course. A loss of cadence and of pedaling smooth circles. A dropoff of HR from the max sustainable threshold for aerobic activity. The rider drops a gear and just plods on at a survival pace. In other words, quits. It’s subtle because after all you are still technically riding up the hill or finishing the race; the difference is that you aren’t really trying anymore. You aren’t at maximal (or targeted) sustainable effort.

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