But the argument found less support as more riders were reported to have died or suffered health problems through drug-related incidents, including the death of Tom Simpson, in the 1967 Tour de France.
Men argumentet fick minskat stöd när flera cyklister rapporterades ha dött eller drabbats av hälsoproblem genom drogrelaterade incidenter, inklusive Tom Simpsons död under Tour de France 1967.