One particular other point not stated is cable drag. The cable routing of some bikes is like the Gordian Knot (mentioning no names, Nonetheless they discuss Canadian French to aero obsessives, A further can make pretty, really large bikes & throws them & worst of the many 'hugely rated' value https://indexing-bike-gears01099.estate-blog.com/32052408/how-much-you-need-to-expect-you-ll-pay-for-a-good-indexing-bike-gears