Originally Posted by erig007

i have been doing this for years and i haven't had any problem yet and i had an achille tendon rupture when i was younger. I believe that as long as i keep riding i won't have any trouble as my bones are used to.



i agree but you agree that the average joe will have a bike less clean (which means more friction), not as efficient (cheaper gears), probably some larger tires and an heavier bike than a pro racer. Because of all that i couldn't say which one has to handle more friction. I know for sure that the average joe will weight more and will be heavier than some pro racer.