When considering crank arm length as a potential solution to knee tracking issues, the oft-touted 165mm option is frequently bandied about as a viable alternative to the more traditional 170mm or 172.5mm lengths. However, does the empirical evidence actually support the notion that 165mm crank arms can effectively mitigate knee tracking problems, or is this simply a case of anecdotal evidence being misconstrued as fact?
For the sake of argument, lets assume that a rider is experiencing knee tracking issues due to a combination of factors such as overextension, poor pedaling technique, or biomechanical inefficiencies. In this scenario, would the reduced leverage afforded by 165mm crank arms be sufficient to alleviate the stresses and loads placed on the knee joint, thereby reducing the severity of the tracking issues?
Conversely, could the reduced crank arm length potentially introduce new problems, such as decreased pedaling efficiency or altered muscle recruitment patterns, which might ultimately exacerbate the knee tracking issues rather than alleviating them? Furthermore, would the benefits of 165mm crank arms be more pronounced for riders with shorter legs or those with a more pronounced Q-factor, or would the advantages be more universal in nature?
Ultimately, the question remains: do 165mm crank arms offer a tangible solution to knee tracking issues, or are they simply a red herring in the quest for optimal pedaling biomechanics? What evidence, if any, supports the use of 165mm crank arms as a viable solution to knee tracking problems, and what are the potential drawbacks or limitations of this approach?