Road bike crank length is often cited as a crucial aspect of a bikes fit, but how much does it really matter for a typical rider, and are the benefits of optimal crank length being overstated?
It seems like many pros and high-level riders dont even bother to adjust their crank length, often sticking with whatever standard length came on their bike. Additionally, some manufacturers have been using the same crank length for different sizes of frames, which would suggest that crank length isnt as critical as some would have you believe.
Furthermore, there appears to be limited scientific research on the topic, and much of what is written about crank length is based on anecdotal evidence and conventional wisdom rather than hard data.
So, for those who claim that optimal crank length is essential for performance and comfort, can you provide some concrete evidence to back up your assertions, and what exactly are the consequences of riding a bike with non-optimal crank length? Is it really worth the hassle and expense of switching to a custom crank length, or is this just another example of bike industry marketing hype?