What are the differences between a 165mm and a 170mm crank and how do these differences impact cycling performance?
The main difference between a 165mm and a 170mm crank is the length of the crank arm. A 170mm crank arm is longer than a 165mm crank arm. The impact of this difference on cycling performance is that a longer crank arm (170mm) can provide slightly more leverage, which may help with power output and climbing. However, it may also require more effort to pedal at higher cadences. On the other hand, a shorter crank arm (165mm) may be more comfortable for riders with shorter legs and can allow for a faster cadence. Ultimately, the choice between the two lengths depends on individual preferences and riding style.