What percentage of leg extension is recommended in the 6 o'clock position during pedaling?

In cycling, it's crucial to maintain proper biomechanics to optimize performance and prevent injury. The recommendation of 85% leg extension in the 6 o'clock position refers to the optimal angle of extension in your knee joint when your pedal is at the bottom of its stroke. This figure indicates that your leg should not be fully extended to avoid excessive strain on the knee, nor should it be overly bent, which could limit power transfer and efficiency.

At 85% extension, there is enough bend in the knee to ensure that the muscles are engaged appropriately while avoiding hyperextension. This balance promotes effective power output and reduces the risk of injury, particularly in the knee and hip joints. Proper alignment also facilitates a more effective pedaling technique.

Maintaining an appropriate leg extension in the 6 o'clock position contributes significantly to endurance and strength during longer rides or high-intensity efforts. Additionally, it aids in maintaining a proper pedal stroke that can enhance overall cycling performance.