This year's Tour de France has been rocked by fresh allegations of modding. Bradley Wiggins was stripped of his yellow fish-tailed parka, after testing positive for traces of quadrophenia.
For years, the endurance sub-culture has been subjected to close scrutiny with many accusations of pedalling. The performance advantage of a lightweight feather-cut is well documented, but other signs of moddism can be harder to spot.
Wiggins angrily rejected claims he was cheating, dismissing rival Nibali as some kind of rudeboy. Meanwhile several smaller teams have withdrawn into themselves looking for answers, after their riders tested positive for EMO.