Recommended crank length to avoid cycling discomfort

Over two-thirds of cyclists are using cranks that are longer than recommended. Using cranks that are too long can cause cycling discomfort and injuries, especially when riding longer distances, due to excessive articulation of the knee and hip at the top of the pedal stroke; using cranks that are too short is far less likely to cause problems. I give general recommendations on what crank lengths are suitable for people in various height ranges.

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