Originally Posted by
JPradun
You'd have to be ignorant to think that an increase of 6-7km/hr (4+mph) over the past 30 years is mostly due to doping.
4+mph avg. increase over a 3-week stage race is a big difference. Just look at the hour record: Merckx' '72 record on steel (49.431 km) v. Sosenka's '05 ride on carbon (49.7 km). A little faster, sure, but...