Considering the change in crank length has a direct impact on a riders position, would a shorter stem length be necessary to compensate for the reduced distance between the saddle and the pedals when switching to shorter cranks, or would this change actually necessitate a longer stem to maintain the desired handlebar height and riding position, assuming no other adjustments are made to the bikes fit.
If the crank length is reduced, wouldnt this theoretically move the riders knees closer to the frame, thus potentially altering the bikes overall fit and potentially making the existing stem length inadequate. On the other hand, could the reduced crank length actually make up for a slightly longer stem, allowing riders to maintain their preferred riding position while reaping the benefits of shorter cranks.
Is it fair to assume that the effect of shorter cranks on the need for a stem change is negligible, or would the dynamics of the riders position and the bikes fit be drastically altered. Would the type of rider, their riding style and the type of bike play a significant role in determining whether a different stem length is needed after switching to shorter cranks.