The Tour de France Femmes Avec Zwift has implemented clothing checks for riders due to concerns about bra padding being used as an aerodynamic aid. According to reports, some riders had allegedly been using bra padding to gain around one second per kilometre, which could result in disqualification and a fine of nearly £200 if caught. The checks are part of the UCI's regulations, which prohibit non-essential elements that modify a rider's morphology, but experts note that policing such rules can be challenging due to subjective needs. A study found that fairings on a mannequin rider reduced drag by up to several seconds, highlighting the importance of aerodynamics in cycling events like time trials.
Written by the local model on 2026-08-21,
using this article's own text rather than the other coverage of the
same event (that is the story summary below).
Story summary
Riders in the Tour de France Femmes Avec Zwift, a women's cycling tournament, have had their clothing checked for bra padding that could potentially give them an aerodynamic advantage. The issue was raised after reports emerged that some riders were using padding in their bras and other items to improve airflow around their bodies, potentially gaining up to one second per kilometre. The race organizer, ASO, issued a statement confirming the checks would take place before each stage, with a focus on ensuring compliance with UCI regulations. The practice of using bra padding for aerodynamic gain has been seen in women's cycling previously, including at the Paris 2024 Olympics, according to Dutch outlet Wielerflits. Riders found to be in violation of these rules could face disqualification and a fine.
Written for “Women's Cycling Competition Controversy” on 2026-08-31,
grounded in this article and the 0 other(s) covering the same event.
Why this leaning score
The article presents a neutral tone and framing, simply reporting on the issue of bra padding in cycling without expressing explicit concern or outrage. The use of phrases such as 'concerns have been raised' and 'issues have reportedly been raised' suggests a balanced approach to presenting the information.
Written under an earlier scoring contract, which gave a paragraph
rather than checkable quotes. Re-analysing this article replaces it.
Leaning score -0.15 for article 470 · logged 2026-08-05
- Published
Riders at the Tour de France Femmes Avec Zwift have had their clothing checked to prevent attempts to make "aerodynamic gains".
asserted
clothing → publish → gains
Issues have reportedly been raised about padding in bras that could result in riders gaining one second per kilometre.
uncertain
riders → raise → kilometre
Race organiser ASO issued a statement following Dutch media reports of concerns some riders had used bra padding as aerodynamic fairings to improve efficiency.
asserted
riders → issue → efficiency
Other items have also been known to be inserted into a skinsuit around the chest area to smooth airflow around the body.
asserted
items → know → body
"Riders must be to the final checks before the race (bikes and outfit) no later than 10 minutes before their respective start time," the statement said.
"
asserted
statement → say → time
Particular attention will be paid to compliance with article 1.3.032 of the UCI regulations, including non-essential elements and clothing or other items/accessories worn by a rider (including but not limited to helmets, glasses, shoes or in-race communication devices) which could modify riders' morphology."
Dutch outlet Wielerflits, external said the practice had been seen previously in women's cycling, including at the Paris 2024 Olympics.
Riders could face disqualification from a race and a fine of nearly £200.
Much attention is paid to airflow and aerodynamic efficiency in cycling as the correct shape of bike frame and skinsuit can save a rider several seconds, especially during a time trial - where a rider races alone against the clock.
uncertain
rider → pay → clock
In ski jumping last February, male athletes were accused of using penis injections to aid aerodynamic efficiency.
asserted
athletes → accuse → efficiency
Cycling's world governing body the UCI's rule also says it prohibits clothing "not strictly necessary for the functionality of the clothing, or other item, or accessory".
asserted
it → say → clothing
"The problem is how are you going to police it?" Lidl-Trek's head of technical and innovation, Koen de Kort, told The Athletic.,
asserted
head → go → .
You can say it's not allowed [but] how can you say how much a woman needs?
asserted
woman → say → much
"That's time to get pretty much into a grey area of what you're allowed to check."
asserted
you → get → what
In a study by researchers at universities in Scotland and the Netherlands, a mannequin of a male rider, 177cm in height, inside a wind tunnel found fairings can give rise to "significant drag aero reductions" and that wider objects yielded the largest gains.
asserted
objects → find → gains
