2012 Vuelta a España - Tour of Spain

it kind of shows how well the drugs worked back in the day

some one gets a shot in the arm at the start of the day and hey presto they ride like men possesed, gapping all comers

now without the chemical advantages it shows how close the top riders are, more like formula one gaps and fractions of a second rather than minutes

Given some of those involved, saying 'without the chemical advantages' is a big statement of faith.